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San Jose - San Francisco -
Oakland, California
United States
City of license San Jose, California
Branding Telemundo 48
Telemundo Bay Area
Telemundo Área de la Bahía Noticiero Telemundo 48 (newscasts)
Channels Digital: 49 (UHF)
Virtual: 48 (PSIP)
Subchannels 48.1 Telemundo
48.2 TeleXitos
48.3 Sistema de Opinion Interactivo (SOI)
Owner NBCUniversal
(NBC Telemundo License LLC)
First air date May 31, 1981 (1981-05-31)
Call letters' meaning ICAO code for Charles M. Schulz–Sonoma County Airport
Sister station(s) KNTV
Comcast SportsNet Bay Area
Comcast SportsNet California
Former channel number(s) Analog:
48 (UHF, 1981–2009)
Former affiliations Independent (1981–1989)
Transmitter power 257 kW
Height 688 m
Facility ID 64987
Transmitter coordinates
Licensing authority FCC
Public license information: Profile
Website Telemundo 48

KSTS, virtual channel 48 (UHF digital channel 49), is a Telemundo owned-and-operated television station serving the San Francisco Bay Area that is licensed to San Jose, California, United States. The station is owned by the NBCUniversal Owned Television Stations subsidiary of NBCUniversal, as part of a duopoly with NBC owned-and-operated station KNTV (channel 11). The two stations share studios and offices located on North 1st Street in San Jose. KSTS's transmitter is located atop Mount Allison.


  • History 1
  • Digital television 2
    • Digital channels 2.1
    • Analog-to-digital conversion 2.2
  • News operation 3
  • References 4
  • External links 5


Former KSTS logo from 1984.

The station first signed on the air on May 31, 1981 as an independent station. It was owned by National Group Television, which was headed by N.J. Douglas. The station initially offered programming weekdays from 5 a.m. to 3 p.m. from the Financial News Network. From 3 p.m. to 7 p.m. weekdays and from noon to 4 p.m. weekends, the station ran off network shows from the 50's and early 60's such as Fury, Gentle Ben, Flipper, Batman starring Adam West, Danny Thomas Show, Jackie Gleason Show, low budget old movies, and other shows. Weekdays after 7 p.m. and weekends throughout much of the day, the station offered various types of brokered programming included foreign language shows, religious programs and some programming pertaining to technology. The station branded under the slogan "Your Computer Connection". KSTS was also the only station to broadcast the introduction of Apple's Macintosh personal computer at the company's 1984 Annual Shareholders Meeting.[1][2] Beginning in the fall of 1981, KSTS carried the subscription television service Star TV, featuring recent movies, after 7 p.m. daily. By 1983, they were carrying subscription TV after 12 noon on weekends. By 1983, the off network shows were dropped for more brokered programming. That year, the station ran various brokered programming weekends from 5 a.m. to noon and from 3 to 6 p.m. weekdays. Financial News remained weekdays till 3 p.m.

NightMusic premiered in August 1984, a three hour weekly live show that featured music videos and comedy. Hosted by John Ward with co-host Brian Leonard NightMusic aired from 9PM to 12M every Saturday for a year and a half and became a cult favorite. Chris Isaak was a frequent guest and Translator once served as the house band.

In 1984, Star TV began winding down operations due to the fact cable penetration eliminated the need for Subscription TV over the air. In January 1985, the station partnered with two other Spanish-language independent stations, WNJU New York City and WSCV Miami to carry about eight hours a day of Spanish programming (which replaced Star TV programming locally) on weekday evenings, forming a network known as NetSpan; later in the year, other stations such as KVEA Los Angeles and WCIU Chicago (which lost affiliation with Spanish International Network gradually joined these the network. Spanish programming gradually increased, on weekends especially and brokered shows gradually were dropped. By 1986, KSTS was running Spanish programming for about half of its broadcast day on weekdays but the entire day weekends. Later that year the Financial News Network programming ended and the station became the entire broadcast day. NetSpan was relaunched as Telemundo in mid-1987. By then, the station was running the network's programming about 16 hours a day. Telemundo bought the station outright later that year, at which time KSTS began carrying Telemundo programming full-time. Initially, KSTS was targeted at the San Jose/Silicon Valley region, but after converting to the Spanish language format, it changed its focus towards the entire San Francisco Bay Area.

In 2000, as a result of its corporate takeover of Telemundo, NBC became the owner of KSTS; it then became a sister station to KNTV (channel 11), which also originally targeted San Jose, after NBC bought that station from Granite Broadcasting Corporation in 2002. The station moved into all-digital broadcast center housed alongside KNTV in 2004.

Digital television

Digital channels

The station's digital channel is multiplexed:

Channel Video Aspect PSIP Short Name Programming[3]
48.1 1080i 16:9 KSTS-HD Main KSTS programming / Telemundo
48.2 480i 4:3 EXITOS TeleXitos

KSTS also has a Mobile DTV feed of subchannel 48.1, broadcasting at 1.83 Mbit/s.[4][5]

Analog-to-digital conversion

KSTS shut down its analog signal, over UHF channel 48, on June 12, 2009, as part of the federally mandated transition from analog to digital television.[6] The station's digital signal remained on its pre-transition UHF channel 49, using PSIP to display KSTS' virtual channel as 48 on digital television receivers.

News operation

KSTS presently broadcasts five hours of locally produced newscasts each week (with one hour each weekday; the station does not produce any newscasts on Saturdays and Sundays). In 1988, KSTS launched its news department with the debut of a half-hour 6 p.m. newscast, which was originally co-anchored by Celina Rodriguez and Dante Betteo. The program proved successful, which resulted in the station later adding a half-hour 11 p.m. newscast.In 2001 it launch a morning newscast Noticiero 48 Esta Manana and a mid-morning newscast Noticiero 48 Al mediodia anchored by Blanca Garza and Santiago Aburto that was cancelled in 2004 while 6 P.M. and 11 P.M. anchored by Cesar Bayona and Mariate Ramos it also produce area only Spanish-Language weather segments anchored by Monica Kanellitsas and Ramon Diaz handled Sports. But in 2006 because of NBCUNI 2.6 NBC dismantled it newscast and replaced with a regionalized News 6 other telemundo stations KTMD Houston KXTX Dallas and KTAZ Phoenix KBLR Las Vegas and KNSO 2010 the newscast returned to KSTS along with Dallas, Houston, Arizona. On February 27, 2012, KSTS became the first Spanish language television station in the Bay Area to begin broadcasting its local newscasts in high definition.[7]

On June 2, 2014, KSTS will debut a two-hour morning newscast, titled Noticiero Telemundo 48 Primera Edición, airing weekdays from 5:00 to 7:00 a.m., along with an additional half-hour newscast at 10:00 a.m.; in addition, the station will begin airing locally produced weather segments during the morning, 6:00 and 11:00 p.m. newscasts, introduce a new consumer investigative segment, "Telemundo Responde" (which will share resources with NBC owned-and-operated sister station KNTV's investigative unit) and debut a new HD-ready news set. KSTS will add 20 additional staffers to its news department with the expansion; it will also begin sharing certain news staff, resources and local programming (including the public affairs program Comunidad del Valle) with KNTV.[8] It doesn't still produce weekend newscast. On August 24, 2014 it had aired a special edition of Noticiero Telemundo 48 Edición Especial related to the earthquake hit the Napa area of San Francisco. Also on that day only station in Spanish on the air 5:30am in the morning to end follow the earthquake 3:20 a.m. Sunday. On September 18,2014 Telemundo announced launch new 4:30/5:30 p.m. newscast all Telemundo owned station including KSTS will also launch the new 5:30 p.m.. starting November 3,2014.


  1. ^ 1984 Apple's Annual Shareholders Meeting - Macintosh Introduction Complete - YouTube
  2. ^ Witless to history: How the “lost” Mac intro video was found (and got my name stuck to it) - Scott Knaster
  3. ^ RabbitEars TV Query for KSTS
  4. ^
  5. ^
  6. ^ List of Digital Full-Power Stations
  7. ^ Noticiero Telemundo 48 ahora en HD
  8. ^ KSTS San Francisco Expands Local News, TVNewsCheck, May 6, 2014.

External links

  • Telemundo 48 Official Website
  • Telemundo
  • The Introduction of Macintosh on KSTS in 1984
  • Query the FCC's TV station database for KSTS
    • Query the FCC's TV station database for K47LC-D
  • BIAfn's Media Web Database -- Information on KSTS-TV
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