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KFSF-DT

A Vallejo-licensed television station serving the San Francisco Bay Area as an owned-and-operated UniMás affiliate.

Last updated August 31, 2026

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Overview

KFSF-DT is a Spanish-language television station licensed to Vallejo, California, and serving the wider San Francisco Bay Area. The station broadcasts the UniMás network and is owned and operated by TelevisaUnivision alongside KDTV-DT, the company's Univision station licensed to San Francisco. Although its license city is Vallejo, KFSF-DT's operational base is the Univision San Jose Broadcast Center on Zanker Road in San Jose, near the North San Jose Innovation District. Its transmitter is located at Sutro Tower in San Francisco, giving the station coverage across the Bay Area. The station began broadcasting on November 25, 1986, under the call sign KPST-TV. It was established by Millbrae-based Pan Pacific Television Inc. as a part-time independent outlet. Its original schedule combined a three-hour Mandarin-language prime-time block with Home Shopping Network programming during most of the remaining broadcast day. The station's license was contested for years by Silver King Broadcasting, the television arm of HSN. In 1989, the Federal Communications Commission opened an investigation into allegations that Pan Pacific had failed to disclose Chinese ownership interests in its license application, an issue related to federal restrictions on foreign ownership of American broadcast properties. The ownership dispute led to an attempted transfer to Channel 66 of Vallejo, a company associated with media executive Barry Diller and businessman Edward Whitehead. Legal and regulatory challenges followed, including objections to the FCC's former preferential treatment for minority-owned firms acquiring stations under investigation. The dispute was eventually settled in 1995, allowing the Whitehead-Diller partnership to proceed with the acquisition. FCC approval arrived in February 1996, with the station valued and purchased under terms reported in contemporary regulatory records and subsequent historical accounts. Silver King's broader corporate development shaped the station's next phase. After Diller acquired HSN and Silver King Broadcasting, the company later purchased USA Network and renamed its broadcast subsidiary USA Broadcasting. USA experimented with a locally oriented independent-station concept known as CityVision, although KPST was not among the stations clearly identified as adopting that format. In 2000, USA Networks put its television station group up for sale. Univision Communications won the transaction for the USA Broadcasting portfolio, acquiring the relevant interests in KPST from both USA Networks and Whitehead after regulatory review and community objections. Following the transaction, Univision used KPST as one of the original outlets for its planned secondary Spanish-language network. The station continued its previous programming for a transitional period, then converted to Spanish-language programming on January 14, 2002, becoming an owned-and-operated station of TeleFutura and changing its call sign to KFSF. TeleFutura was intended to complement Univision with programming aimed at bilingual Latino viewers and younger male audiences, while also competing with Telemundo and other Spanish-language networks. On January 7, 2013, TeleFutura was rebranded UniMás. The relaunch positioned the network around a younger Latino male audience, particularly viewers interested in sports, entertainment, action-oriented programming and other content distinct from Univision's broader Spanish-language schedule. KFSF-DT remains a local broadcast outlet for that network in the Bay Area. The station completed the federally mandated analog-to-digital transition on June 12, 2009, ending analog transmission on UHF channel 66 while retaining virtual channel 66 on its digital service.

History

KFSF-DT first signed on November 25, 1986, as KPST-TV. Pan Pacific Television Inc., based in Millbrae, California, launched the station as a part-time independent broadcaster. Its initial schedule paired a limited Mandarin-language programming block during prime time with Home Shopping Network content for much of the broadcast day. The station's license became the subject of an unusually prolonged ownership dispute. Silver King Broadcasting, HSN's broadcast subsidiary, had competed for the Channel 66 authorization and continued to pursue the property after KPST-TV began broadcasting. In 1989, the FCC investigated allegations that Pan Pacific had failed to disclose Chinese ownership interests in its application. The inquiry was significant because U.S. broadcast rules limited foreign ownership in American television and radio licensees. Pan Pacific subsequently agreed to sell the station to Channel 66 of Vallejo, an entity established by Barry Diller and Edward Whitehead. Whitehead held the controlling interest in the proposed ownership structure. The transaction encountered further objections after a federal court invalidated FCC rules that had given minority-owned applicants favorable treatment when purchasing broadcast properties under investigation. Several parties filed challenges or competing applications, extending the dispute. In late 1995, the principal parties reached an out-of-court settlement. The settlement allowed the Whitehead-Diller group to proceed while providing reimbursement for certain legal expenses incurred by the parties that withdrew their challenges. The FCC approved the acquisition in February 1996. Silver King's involvement connected KPST-TV to Diller's expanding television holdings, which soon included HSN and, later, USA Network. In 1997, the broadcast division was renamed USA Broadcasting after the acquisition of USA Network. USA Broadcasting experimented with a CityVision format that combined syndicated entertainment with local magazine and community-oriented programming. The concept was implemented at selected stations in markets including Miami, Atlanta, Dallas-Fort Worth and Boston, but the available historical record does not identify KPST-TV as a confirmed CityVision outlet. KPST therefore remained associated with the broader USA Broadcasting station portfolio without a documented full conversion to that format. In 2000, USA Networks announced the sale of its television stations so that the company could concentrate on cable networks and television production. Univision Communications won the competition for the group with a reported $1.1 billion purchase agreement announced in December 2000. Because KPST had a joint ownership arrangement, Univision separately acquired the interests held by USA Networks and Whitehead. The transaction faced objections from Bay Area residents of Chinese origin and San Francisco political figures, but the FCC approved it and thereby enabled a duopoly relationship with Univision's KDTV. Univision initially kept some of the acquired stations' previous programming while preparing a new secondary network. KPST continued carrying Home Shopping Network and Mandarin programming during the transition. On January 14, 2002, it became a Spanish-language owned-and-operated station of TeleFutura and changed its call sign to KFSF, referencing the network and market. TeleFutura was designed to complement Univision and compete with Telemundo and Azteca América, with an emphasis on bilingual Latino viewers and younger male audiences. TeleFutura was rebranded UniMás on January 7, 2013. The new identity emphasized its connection to Univision while sharpening the network's appeal to younger Latino men. KFSF-DT continues to distribute UniMás programming in the San Francisco Bay Area. The station's physical operations are based at Univision's San Jose facility, while its transmitter is at Sutro Tower. It ended analog broadcasting on June 12, 2009, retaining virtual channel 66 on its digital signal.

  • 2013

    TeleFutura becomes UniMás

    [1]

    The network relaunches under the UniMás name and KFSF becomes its San Francisco Bay Area station.

  • 2009

    Analog transmission ends

    [1]

    KFSF shuts down its analog UHF 66 signal during the federally mandated digital television transition.

  • 2002

    Station joins TeleFutura

    [1]

    KPST-TV converts to Spanish-language programming, adopts the KFSF call sign and becomes a TeleFutura owned-and-operated station.

  • 2000

    Univision agrees to acquire USA Broadcasting

    [1]

    Univision Communications announces an agreement to purchase USA Networks' television station group, including the interests connected with KPST-TV.

  • 1996

    FCC approves the Whitehead-Diller acquisition

    [1]

    The FCC authorizes the purchase of KPST-TV by the partnership associated with Edward Whitehead and Barry Diller.

  • 1995

    Ownership litigation is settled

    [1]

    The Whitehead-Diller partnership and opposing applicants reach a settlement that clears a path for the proposed acquisition.

  • 1989

    FCC ownership investigation begins

    [1]

    The FCC investigates allegations concerning the disclosure of Chinese ownership interests in Pan Pacific Television's license application.

  • 1986

    KPST-TV begins broadcasting

    [1]

    The station signs on November 25 as a Vallejo-licensed independent outlet with Mandarin programming and Home Shopping Network content.

Products and positioning

A local Spanish-language broadcast station serving Bay Area Latino audiences as the regional UniMás outlet, with programming oriented toward entertainment, sports and younger viewers.

  • Spanish-language television network affiliate · 2013

    UniMás programming service

    KFSF-DT's principal offering is the over-the-air distribution of UniMás programming across the San Francisco Bay Area. The network complements TelevisaUnivision's Univision service with Spanish-language entertainment, sports and other programming aimed particularly at younger Latino viewers and male audiences. The station carries the network on its digital service using virtual channel 66.

  • Historical television broadcasting · 1986

    KPST-TV independent service

    Before its Spanish-language conversion, the station operated as KPST-TV. Its initial service was a hybrid schedule consisting of a Mandarin-language prime-time block and Home Shopping Network programming during most other hours. This format ended when the station joined TeleFutura in 2002.

Brand decisions

  • 2013

    Adopt the UniMás network identityStrategy

    Background

    TeleFutura was repositioned to make its relationship with Univision clearer and to focus more directly on younger Latino male viewers.

    Action taken

    The network was relaunched as UniMás on January 7, and KFSF adopted the new network identity as its Bay Area outlet.

    Aftermath

    KFSF-DT continued as a UniMás station under TelevisaUnivision's ownership.

  • 2009

    Complete the digital television transitionOther

    Background

    U.S. full-power television stations were required to end analog broadcasting under the national digital transition.

    Action taken

    KFSF shut down its analog UHF channel 66 signal and continued digitally on its pre-transition channel while retaining virtual channel 66.

    Aftermath

    The station became a fully digital over-the-air broadcaster.

  • 2002

    Convert the station to Spanish-language TeleFutura serviceStrategy

    Background

    After acquiring the USA Broadcasting stations, Univision prepared a second Spanish-language network intended to complement Univision and compete for bilingual Latino and younger male audiences.

    Action taken

    Univision replaced the station's prior Home Shopping Network and Mandarin-oriented schedule with TeleFutura programming and changed the call sign from KPST-TV to KFSF.

    Aftermath

    KFSF became an owned-and-operated TeleFutura station and later continued as the market's UniMás outlet after the network's 2013 rebrand.

    • Telemundo — TeleFutura's launch increased competition for Spanish-language television viewers, although no specific public reaction is documented in the cited material.
    • Azteca América — The new service entered a market that also included the recently launched Azteca América; no specific public reaction is documented in the cited material.

Sources2 sources

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