| Currentlysilent | |
|---|---|
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| Broadcast area | San Francisco Bay Area |
| Frequency | 560kHz |
| Ownership | |
| Owner |
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| KNBR,KNBR-FM,KSAN,KSFO,KTCT | |
| History | |
First air date | August 1, 1925 (100 years ago) (1925-08-01) |
Former call signs |
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Former frequencies |
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| Technical information[1] | |
Licensing authority | FCC |
| Facility ID | 34472 |
| Class | B |
| Power | 5,000 watts |
Transmitter coordinates | 37°44′43.7″N122°22′43.9″W / 37.745472°N 122.378861°W /37.745472; -122.378861 |
| Links | |
Public license information | |
KZAC (560AM) is a commercial radio station inSan Francisco, California, that used the call sign KSFO from 1935 to 2024, and is currentlysilent. Owned byCumulus Media, KZAC's transmitter is located near theIslais Creek Channel.
KZAC began broadcasting in 1925 as a station licensed toOakland with the call sign KTAB, on a frequency of 1390 kHz. Owned by a Baptist church in Oakland, KTAB had a religious-focused format in its first year before changing to a commercial, non-religious format. After several frequency changes, the station moved to its current 560 kHz frequency in 1929 and became KSFO in 1935, re-licensed to San Francisco. KSFO joined theCBS Radio Network in 1937.
In 1956, KSFO was purchased by Golden West Broadcasters, a company co-owned byGene Autry andBob Reynolds. Golden West programmed afull service format for KSFO featuring popular music, news, and sports, with a popularjingle "The Sound of the City". Golden West sold KSFO toKing Broadcasting Company in 1983, after which KSFO became apop standards station. Then in 1986, KSFO shifted its music format to reflect 1950s to 1970soldies, before becoming a simulcast ofKYA-FM in 1987. Sold again to First Broadcasting Company in 1992, KSFO had a combined oldies andsports talk format before changing to a full-timetalk radio format in 1993.
Capital Cities/ABC Inc. bought KSFO in 1995 and shifted its programming to emphasizeconservative talk, and was one of the most popular stations in San Francisco through the late 1990s.Michael Savage and his showThe Savage Nation, which was later nationally syndicated, originated from KSFO through the majority of its run. Other local hosts included Geoff Metcalf,Melanie Morgan andBrian Sussman. Through its history, KSFO has also broadcast local sports teams, includingStanford Cardinal football,San Francisco 49ers,San Francisco Giants,Oakland Athletics,Oakland Raiders, andCalifornia Golden Bears men's basketball. A 2024 programming realignment by current owner Cumulus Media saw KSFO's format and branding moved to810AM and this facility renamed as KZAC; in 2025, the station went silent.
Until 1927, radio in the United States was regulated by theBureau of Navigation within the Department of Commerce. On August 1, 1925, the bureau sent a telegram[2] authorizing a new radio station for the Tenth Avenue Baptist Church inOakland, California, operating on 1390 kHz.[3] The station's call letters, KTAB, reflected its owner's name.[4]
KTAB's debut broadcast, at 8 p.m. on August 1, 1925, featured adoxology from the church choir, a classical music performance from trumpeterGrace Adams East and a speech by the Reverend George W. Phillips, the church's pastor.[5] KTAB was issued a formalbroadcast license on August 10, 1925,[2] and began broadcasting daily at 1250 kHz eight days later. In its early months, KTAB had a noncommercial format primarily with broadcasts of church services.[4]
On March 25, 1926, The Associated Broadcasters, a company founded by Tenth Avenue Baptist Church attendees, entered a 20-year lease agreement with the church to operate KTAB.[4] The Associated Broadcasters converted KTAB into a commercial station, and owing to a temporary lack ofU.S. Department of Commerce regulation of radio station wavelengths or power levels under theRadio Act of 1912, KTAB moved to a better frequency of 990 kHz in June 1926.[4]
Following the passage of theRadio Act of 1927 in April of that year, the newly formedFederal Radio Commission (FRC) relicensed KTAB to broadcast on 1070 kHz with a power of 500 watts, effective June 1, 1927. Following an appeal, the FRC allowed KTAB to broadcast with 1,000 watts on Sundays in July and August 1927.[4]
After thePickwick Broadcasting Corporation purchased The Associated Broadcasters on August 1, 1928, KTAB's studios moved from Oakland to the Pickwick Hotel at Fifth and Mission Streets in San Francisco on September 29, 1928.[4] Around that time, KTAB moved from 1070 to 1280 kHz, before sharing airtime withKLX at 550 kHz on November 11, 1928.[4] By early 1929, KTAB broadcast full time on 550 kHz after KLX moved to 880 kHz, and KTAB had an on-airbackronym slogan, "Knowledge, Truth, And Beauty."[4] KTAB moved to the station's present frequency of 560 kHz in November 1929.[4]
Having operated the station since 1926, Associated Broadcasters outright bought KTAB from Tenth Avenue Baptist Church in early 1930, and KTAB began broadcasting at 1,000 watts day and night beginning in October 1930.[4] On March 14, 1933, the KTAB studios returned to Oakland, this time at Sweet's Ballroom, then at 1424 Franklin Street.[4] Pickwick sold The Associated Broadcasters to mortgage banker Wesley I. Dumm and business partner Philip G. Lasky in the fall of 1933.[4] The Dumm–Lasky group moved KTAB's studios from Oakland to theRuss Building in San Francisco. KTAB moved from apenthouse apartment to the entire 31st floor of the Russ Building on April 11, 1935.[4]
KTAB changed its call signs to KSFO andcity of license to San Francisco on May 2, 1935.[6] Some early programming on KSFO was rebroadcast fromKNX in Los Angeles.[4] National programs on KSFO includedAlka-Seltzer Newspaper of the Air,Cowboy Church withStuart Hamblen, andFather Coughlin.[7] As early as1936, KSFO broadcastStanford University football games.[8]
On January 1, 1937, KSFO replacedKFRC as San Francisco'sCBS Radio affiliate.[4] Nearly seven months after theFederal Communications Commission (FCC) granted aconstruction permit, KSFO began broadcasting at its current power of 5,000 watts from a new 389-foot steel transmitter at Pier 92 andIslais Creek.[4] KSFO's studios moved from the Russ Building to thePalace Hotel on August 12, 1938.[4]
After purchasing a stake inKROW, Lasky resigned from KSFO in 1940 to manage KROW. Effective December 31, 1941, KSFO was no longer affiliated with CBS Radio, after the network moved toKQW inSan Jose.[4] Going forward, KSFO had an independent music and news format.[4] Just before the start ofWorld War II, Dumm was tapped by PresidentFranklin D. Roosevelt to use his KSFO facility to launch internationalshortwave broadcast stations KWID (for Wesley I. Dumm) and KWIX. These stations became the forerunners of theVoice of America. Facilities for KSFO, KWID, and KWIX were located at San Francisco'sIslais Creek where the KSFO transmitter continues to operate today.[citation needed]
KSFO again moved its studios in August 1943, this time to theMark Hopkins Hotel, with which The Associated Broadcasters signed a long-term lease in 1942.[4] In 1948, KSFO sought aconstruction permit to exchange frequencies with KQW, which then had a 50,000 watt signal at 740 kHz. The construction permit was withdrawn in 1950 after KSFO's new co-owned television stationKPIX became a CBS affiliate. After nine years at the Hopkins Hotel, in February 1952, KSFO moved to a shared office space with KPIX at 2655 Van Ness.[4]
On March 6, 1953,Don Sherwood debuted on KSFO as host of the morning show.[9] KSFO's licensee was renamed San Francisco Broadcasters on May 25, 1954, in advance of the Dumm–Lasky ownership group selling KPIX toWestinghouse Broadcasting.[4]
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In June 1956, San Francisco Broadcasters sold KSFO for nearly $1 million to Golden West Broadcasters, a company co-owned byWestern movie actorGene Autry and former football playerBob Reynolds.[11] On the morning of December 19, 1956,AFTRA union members went on strike at KSFO after being unable to reach an agreement for a new contract. As a result, KSFO joined three other Bay Area radio stations,KLX,KROW, andKYA, in acollective bargaining agreement.[12]
Golden West launched afull service format that featured personality-drivenmiddle of the road (MOR) music programs, local news, and local sports.[13] Additionally, KSFO's slogan was "The World's Greatest Radio Station."[14] Its signaturejingle, "The Sound of the City" with words and music composed byJohnny Mann, was sunga cappella by eight studio singers at the United Western Recorders studio inHollywood.[15] According toSan Diego State University communications professors Joseph S. Johnson and Kenneth K. Jones, the jingle "has such a lovely melody and lyrics that station listeners request it, and records of the jingle have sold in music stores.[16] Outside of San Francisco, similarly formatted stations adapted "The Sound of the City" for their markets.[16]
Johnson and Jones observed that KSFO "always played from a wide spectrum of popular music" in a "free-form, but controlled" way, with "current hits, oldies, [and] a lot of pieces from albums (and not always the same cut from the same album)."[17] Golden West turned KSFO into the most popular radio station in the San Francisco Bay Area.[18] In the March 1964Billboard radio response survey for San Francisco, KSFO was the top station among listeners for popLPs, non-rock singles,folk music, and comedy; for jazz, KSFO ranked second behindKJAZ.[19] By January 1967,RKO General'sKFRC knocked KSFO out of the no. 1 spot in Bay Area ratings.[20] Additionally, KSFO faced additional competition for its target 25-to-49 age group from FMprogressive rock stationsKMPX andKSAN.[21]
From1957 to1980, KSFO was the radio home of theSan Francisco 49ers football team. Initially,Bob Fouts was on play-by-play andLon Simmons on color commentary. Beginning in1961, Simmons was elevated to play-by-play.[22] Both of the Bay Area'sMajor League Baseball teams had games on KSFO. From its first season moving from New York in1958 to1978, theSan Francisco Giants broadcast their games on KSFO, with notable announcers includingRuss Hodges,Lon Simmons,Al Michaels, andJoe Angel.[23] Then starting in1981, KSFO was the radio home of theOakland A's, with a broadcast team ofBill King, Lon Simmons, andWayne Hagin.[24]
Jim Lange joined KSFO as afternoon host in January 1960.[25] In November 1960, KSFO hiredAl "Jazzbo" Collins, former host ofNBC'sTonight.[26] When Lange began hosting TV shows in Los Angeles such asThe Dating Game in 1965, Lange moved to mornings on KSFO in order to accommodate his TV taping schedule.[27][25] In 1968, KSFO hiredTerry McGovern away fromKDKA inPittsburgh.[28]
Beginning in the 1969–70 sports season, KSFO began 16 seasons of broadcastingStanford University football andbasketball games.[29]
In response to market research showing that most of its daytime audience preferred watching television at night, KSFO hiredJohn Gilliland in 1971 to host a five-hour variety block of music and entertainment evenings from 7 p.m. to midnight; Gilliland would continue as host until 1978.[30][27] In addition to music, Gilliland's program featured theCBS Radio Mystery Theater,dramas and other serials from theGolden Age of Radio, comedy shows, and Gilliland'sPop Chronicles music documentaries.[27][31] KSFO broadcastMystery Theater so that local CBS Radio affiliateKCBS did not have to interrupt its all-news programming.[27]
After a decline in ratings in the mid-1970s, KSFO began diversifying its music playlist. KSFO continued playingFrank Sinatra,Tony Bennett, andPeggy Lee, whose music had been phased out of many MOR stations. The station added tracks fromErnestine Anderson and contemporary artists likeThe Carpenters andBette Midler. In the October/November 1976Arbitron survey, KSFO was the most popular station among women aged 25 to 49 and averaged 10,800 listeners aged 18 to 49 per hour, between KCBS and KFRC.[32] KSFO was the station that brokeElmo and Patsy's "Grandma Got Run Over by a Reindeer" to national fame.[33]
The station's news department earned national and international journalism awards for coverage of the 1978Peoples Temple mass suicides inJonestown,Guyana[34] and theassassinations of San Francisco MayorGeorge Moscone and SupervisorHarvey Milk by former SupervisorDan White.
By 1983, KSFO's nighttime power increased from 1,000 to 5,000 watts, the same as its daytime power.[35] In June 1983, Golden West reached an agreement to sell KSFO toSeattle-basedKing Broadcasting Company, which also ownedKYA andKLHT (later KYA-FM) in San Francisco, for a reported $8 million.[35]
At 12:01 a.m. on December 13, 1983, King Broadcasting officially owned KSFO and flipped the station topop standards, a tribute to KSFO's popular format from those decades, aimed at listeners aged 35 to 54.[36] King Broadcasting brought back former KSFO personality Al "Jazzbo" Collins fromWNEW in New York City to host a late night jazz show.[36][37] KSFO's studios were now at 300 Broadway along with King Broadcasting's renamed KYA-FM.[38]
In July 1986, seeking to attractBaby Boomer listeners, King Broadcasting changed KSFO's music format to be similar to KYA-FM. KSFO playedoldies from 1956 to 1973, while KYA-FM had a broader playlist with hits extending as late as 1980.[37] By March 1987, KSFO began simulcasting KYA-FM, with breakaways for Oakland A's games.[39][40]
On January 27, 1992, the First Broadcasting Company bought KSFO and 93.3KYA-FM for $13 million.[4] KSFO signed a three-year contract in May 1992 to broadcastUniversity of California, Berkeley (Cal) men's basketball games.[41]
On September 28, 1992, KSFO dropped its simulcast with KYA-FM and began a new format witholdies during the day andsports talk at night.[4][42] Among its new programs were the syndicatedTalk Sports withPete Rose andSports Byline USA.[43][42] However, sports programming was short lived. In November, KSFO lost the rights to Oakland A's games after 12 seasons toKNEW (then on 910).[44] The following month, KSFO began phasing out all sports talk programming and addedWolfman Jack in evenings.[42]
KSFO dropped the oldies format on September 20, 1993, for atalk format, with Gene Nelson andPeter B. Collins hosting drive time shows and nationally syndicated hosts in other times includingG. Gordon Liddy,Larry King, andBruce Williams.[45] Around the end of 1993, KSFO disabled itsC-QUAM stereo sound system.[4]
Entering alocal marketing agreement withCapital Cities/ABC Inc., which also ownedKGO-AM and-TV at the time, First Broadcasting hired new president and general manager Mickey Luckoff for KSFO on September 1, 1994, and moved the station from 300 Broadway to the ABC Broadcast Center at 900 Front Street with the KGO stations.[46][4] Rebranding as "Radio with Attitude," KSFO completely revamped its programming, hiring formerNPR reporterEmil Guillermo as a host and picking up national showsThe Dr.Laura Schlessinger Show,The Tom Leykis Show andThe Fabulous Sports Babe.[47] On February 14, 1995, the FCC waived its rule allowing companies to own only one radio station per market to allow Capital Cities/ABC, parent company of the KGO AM and TV stations that was already operating KSFO, to purchase KSFO from First Broadcasting.[48] The FCC ruled that the transfer was "consistent with the public interest and would have no effect on diversity and competition in the San Francisco market."[49] Subsequently, Capital Cities/ABC bought KSFO for nearly $10 million.[50]
KSFO launched its newconservative talk format on January 1, 1995.[47] With the brand "Hot Talk 560" and slogan "The Station for Right-Thinking People," the station introduced a lineup that hadJ. Paul Emerson hosting morning drive,The Savage Nation withMichael Savage in afternoon drive, and syndicated shows hosted byKen Hamblin,Michael Reagan, andPat Buchanan.[51][52] "In going conservative, KSFO follows a proven national trend, in which conservatives have come to dominate the radio talk show industry," observed Edward Epstein of theSan Francisco Chronicle.[47]
In addition, the new KSFO carried news updates fromABC Direction, andStanford football broadcasts returned for the first time since1984.[46][53][29] Although KSFO initially won broadcast rights to the then-Los Angeles Raiders in late 1994, after the Raidersreturned to Oakland in the 1995 offseason, other Bay Area stations began bidding for Raiders broadcasting rights.[54] FM stationKSAN (then on 94.9) and AM stationKNEW (then on 910) won the Raiders broadcasting rights in 1995.[55] KSFO also dropped Cal basketball after the 1994–95 season, with game broadcasts moving toConcord stationKATD.[56]
San Jose Mercury News radio critic Brad Kava responded negatively to the KSFO format change, complaining that station management took "a progressive station that really spoke to the diversity of the Bay Area -- the only station to feature women and minorities in decent time slots -- and replaced it with a bunch of reactionary ranters no different from all the other ranters piling up radio ratings across the country."[57]
Only a month into the job, Emerson resigned from KSFO after his February 14 show, following controversy over allegedly homophobic remarks he made onThe Phil Donahue Show calling on people with AIDS to be "quarantined."[58] The new KSFO format's firstArbitron ratings in spring 1995 had a 1.2 share near the bottom of all San Francisco stations, while sister station KGO led the market with a 6.9.[59] Lee Rodgers, formerly ofKIRO inSeattle, became morning drive host in the May 1995, withMelanie Morgan as co-host.[60][61] In October 1995, Geoff Metcalf joined KSFO.[62]
After theTelecommunications Act of 1996 loosened media ownership regulations to allow companies to own up to eight radio stations in one media market, KSFO and KGO parent company Capital Cities/ABC merged withThe Walt Disney Company and becameABC Inc. effective October 1, 1996.[63][64]
After a stint at KGO, Jim Eason returned to KSFO starting on July 15, 1996.[65] After the1997 season, KSFO stopped broadcasting Stanford football, which moved to upstart sports stationKTCT, formerly KOFY-AM.[66] A month later, a bipartisan group of state legislators, including State SenatorsMike Thompson (Democrat ofSt. Helena),Quentin Kopp (independent of San Francisco), andLarry Bowler (Republican of Sacramento) challenged KGO and KSFO hosts including Morgan and Metcalf to provide evidence that the state's newSmog Check II program would harm drivers in California, with allegations including that 60 percent of cars would fail the new smog test.[67]
KSFO's Arbitron ratings rose from 2.2 in spring to 2.8 and 11th in the San Francisco market in summer 1996.[68] Even with1996 being an election year, KSFO's ratings declined to 2.4 in fall 1996 and 2.2 in the winter.[69] However, KSFO broke into the top 10 of the San Francisco Arbitron ratings by summer 1997 with a 3.2.[70]
Talkers Magazine named KSFO's Savage among the 100 most important talk radio hosts in the U.S. in its March 1998 issue.[71] In a time period with theClinton–Lewinsky scandal and aCalifornia gubernatorial election dominating the news, KSFO was a top-10 station in San Francisco's Arbitron ratings throughout 1998.[72][73]
KSFO continued to be in the top 10 in the spring of 1999 as theimpeachment of President Bill Clinton took place.[74] Also beginning in 1999, Savage dividedThe Savage Nation into local and national versions.[75] KSFO added syndicated shows to its lineup in 2000.The Rush Limbaugh Show debuted July 3, 2000, on KSFO afterKNBR droppedLimbaugh in order to create a full-time sports talk schedule.[76]Talk Radio Network began complete national syndication ofThe Savage Nation on September 21, 2000.[77] In February 2000,SF Weekly published an essay by former KSFO producer Samantha Spivack in which she recounted her experience interacting with whom she called "anti-fans" of KSFO in the Bay Area: "To be conservative, nowadays, particularly in San Francisco, is to be consideredhateful. ... KSFO Radio has been described in tones of hysteria as a cauldron of racism and homophobia, a wacko gun-nut unit, a nest of conspiracy theorists spouting political paranoia."[78]
FormerKPIX meteorologistBrian Sussman began hosting evenings on KSFO in 2003.[79] Also in 2003, KSFO droppedThe Savage Nation on June 2 after being unable to renegotiate a contract with Savage and replaced it withThe Sean Hannity Show.[80][81]The Savage Nation moved to rival stationKNEW a month later.[82]
KSFO was also influential in the2003 California gubernatorial recall election against GovernorGray Davis, with Morgan helping launch a fundraiser for a recall petition and interviewing recall advocates on the morning show.[61][83]
Beginning in the2004 season, KSFO was the flagship station for the Oakland Raiders. Following a one-year contract in 2004, KSFO signed a contract extension in2005.[84]
In February 2006, KSFO addedThe Mark Levin Show to its schedule.[85] In the same month, Disney announced a $2.7 billion sale of ABC Radio Networks and 22 stations, including KSFO and KGO, toCitadel Broadcasting.[86][87] The ABC Radio-Citadel merger completed on June 12, 2007.[88]
Melanie Morgan attracted media attention in June 2006 after suggesting anyone convicted oftreason be sent to thegas chamber, includingNew York Times editorBill Keller.[89]
In late 2006 KSFO entered a dispute with "Spocko", aliberal blogger who recorded KSFO talk shows and posted excerpts as examples ofhate speech andeliminationist rhetoric, such as Rodgers advocating that a protester be "stomped to death" and Sussman challenging a caller to refer toAllah as a "whore".[90] Spocko began a letter-writing campaign to advertisers on KSFO, alerting them to these examples and urging them to withdraw their support of the station.[90][91] Some advertisers, includingNetflix,MasterCard,Bank of America, andVisa, stopped running commercials on KSFO.[92][93] On December 22, 2006, ABC lawyers sent acease and desist letter to Spocko, demanding that he remove the KSFO audio clips due tocopyright violations. Spocko's Internet hosting provider1&1 Internet complied with the cease-and-desist letter and took down Spocko's Web site.[94]
On January 12, 2007, KSFO preempted the Laura Schlessinger show for a special three-hour program where Morgan, Rodgers, and Sussman responded to Spocko and other critics. Sussman apologized for remarks highlighted by Spocko while calling Spocko's Web site "a complete abuse of the First Amendment."[94][95]
KSFO made several sports and talk programming changes starting in 2008. Due to budget constraints that resulted from parent company Citadel Broadcasting losing over $800 million in the fourth quarter of 2007, KSFO declined to renew Morgan's contract after it expired on March 31, 2008.[96]
Several more programming changes followed. In 2009, KSFO began carrying the Hannity and Levin shows live in afternoons.[97] Following the2009 season, KSFO lost the Raiders broadcasting rights toCBS Radio stationsKITS-FM andKFRC-AM (then on 1550).[98] Meanwhile, declining advertising revenue and $2.5 billion in debt led Citadel Broadcasting to file forChapter 11 bankruptcy in December 2009.[99]
Sussman became full time morning drive host on February 19, 2010, after Rodgers retired.[100] KSFO also began broadcastingThe John Batchelor Show in Sussman's former 6 p.m. slot.[101] After nearly 16 years managing KSFO and over 35 years with KGO, Luckoff resigned from both stations on October 4, 2010. Luckoff told theSan Francisco Chronicle that he had been considering leaving the stations since November 2009 and cited the bankruptcy and management decisions by Citadel as reasons for leaving.[102]
KSFO changed ownership in 2011 afterCumulus Media bought Citadel for $2.5 billion. The deal was made on March 10, with the purchase closing on September 16.[103][104]
On January 3, 2012, KSFO replacedThe Rush Limbaugh Show with a local show hosted byJ. D. Hayworth, a former U.S. Representative from Arizona. This move followed programming changes throughout local radio at the end of 2011, starting with sister station KGO laying off many of its talk show hosts. Limbaugh and some former KGO hosts moved to the newly branded "News/Talk 910" atKKSF, formerly KNEW.[105] Morgan also returned to co-host the morning show with Sussman in 2012.[106]
After Savage won a lawsuit against Talk Radio Network, Savage signed with Cumulus Media, andThe Savage Nation returned to KSFO on October 23, 2012.[107]
In July 2013, Morgan left KSFO for the second time, and Katie Green replaced Morgan as morning show co-host.[106]
From the2013–14 to2016–17 seasons, Cal men's basketball returned to KSFO for select games.[108][109][110] In July 2017, KGO became the exclusive home of Cal sports.[111]
Beginning September 29, 2014, the Limbaugh and Hannity shows returned to KSFO after their former Bay Area station,KNEW (960 AM), changed toBloomberg Radio.[112]
On March 31, 2016, Cumulus Media announced that longtime KGO radio hostRonn Owens would move to KSFO as afternoon drive host, with KGO planning to replace Owens withall-news programming. However, four days later, Cumulus kept Owens on KGO due to language in his contract forbidding Cumulus from relocating his show from KGO.[113]
Airing the show in early evenings, KSFO became the 600th affiliate ofThe Dave Ramsey Show, a financial advice show, on January 8, 2018.[114] Beginning in January 2019,The Savage Nation cut back from three hours to a one-hour radio show and separate hourlong podcast;Westwood One introducedThe Ben Shapiro Show in place of the last two hours of the Savage radio show, and KSFO began carrying Shapiro followingThe Savage Nation radio show and podcast beginning February 11.[115][116] Sussman went on medical leave in October 2019 before officially retiring on January 15, 2020.[117]
On March 2, 2020, KSFO replaced its local morning show withArmstrong & Getty, a syndicated show based atKSTE inSacramento that had previously been heard on KGO.[118]The Savage Nation radio show ended on December 31, 2020, for reasons that Savage claimed were "constrained for legal reasons", but the show continued as an online-only podcast.[119]
As part of a larger realignment with the Cumulus San Francisco cluster, KSFO's programming was "moved" to810AM under the "810 KSFO" branding on November 18, 2024, displacing KGO's existingsports betting format.[120][121] The KSFO call sign moved to810AM on January 1, 2025, with560AM becoming KZAC.[122]
On March 3, 2025, KZAC went off the air.[123]
| International | |
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| National | |
