What is network television, and is it ever commercial free?

kvoa is a full-service television station serving what area and it affiliated with what TV network?

• Answer:

  KVOA is a full-service television station serving Tucson, Arizona KVOA is a full-service television station serving Tucson, Arizona as the NBC affiliate. It broadcasts in digital on UHF channel 23 from its transmitter on Mount Bigelow, northeast of Tucson. Per FCC regulations, the station identifies itself on television tuners as channel 4 through PSIP. KVOA has a low-power digital translator in Casas Adobes and analog translators in Duncan/Safford and Sierra Vista. The primary station and the Casas Adobes and Sierra Vista translators are owned by Cordillera Communications, a subsidiary of the Evening Post Publishing Company of Charleston, South Carolina. History In September 1953, KVOA signed on as Tucson's second television station and NBC affiliate, eight months after KOLD-TV signed on as the CBS affiliate. Although KVOA was an NBC affiliate, it carried a secondary affiliation with ABC until 1956 when KDWI-TV (now KGUN) began operations. During the late 1950s, the station was also briefly affiliated with the NTA Film Network.[2] It was originally owned by Chicago advertising executive John Louis, Sr., along with KVOA-AM 1290 (now KCUB). It was a sister station to KTAR in Phoenix. In October 1953, KVOA brought Tucson its first-ever live television event: a World Series broadcast[3]. The Louis broadcasting empire eventually became known as Pacific & Southern Broadcasting, headquartered in Phoenix; however, Louis did not keep KVOA for long. In 1955, Louis sold the KVOA stations to Clinton D. McKinnon, who would later acquire KOAT-TV in Albuquerque, New Mexico and combine the two television stations to form Alvarado Television. In 1962, the Alvarado stations were sold to Steinman Stations, the owner of WGAL-TV in Lancaster, Pennsylvania. In 1968, the Steinmans sold a controlling stake in KVOA-TV to Pulitzer Publishing, making it Pulitzer's first (partial) television station acquisition outside of its home base in St. Louis, Missouri; KOAT went to Pulitzer fully a year later. In 1972, Pulitzer was forced to spin off its share of KVOA to an employee group called Channel 4-TV after it purchased the Arizona Daily Star the year before due to the tightening of the Federal Communications Commission's cross-ownership rules. Channel 4-TV also acquired Steinman's stake in KVOA around the same time. The station was acquired by the Hobby family of Houston, publishers of the Houston Post, in 1982. When the Post was sold a year later, the Hobby family reorganized its broadcasting interests as H&C Communications. H&C sold off its television stations in 1993, with KVOA going to the Evening Post Publishing Company. For decades, KVOA had used the Eyewitness News moniker, and the slogan "Where The News Comes First". It also was the market's news leader: by 1995, KVOA had led the Tucson news ratings for 21 straight years, half of its history[4] – but only after Jon F. Ruby became the station's general manager in 1974 and initiated a major expansion of news. In 1995, KVOA's $750,000 satellite truck was the market's only microwave-based live news vehicle; Eyewitness News equaled or beat KGUN and KOLD combined in all time slots; was first with stereo, closed captioning, and microwave electronic news gathering; and had the largest television news staff in the market (second in size only to the Arizona Daily Star). However in February 2006 the name shortened to News 4, with the new slogan "Coverage You Can Count On". In November 2007, KVOA changed its slogan to "Balanced News You Can Count On". In April 2007, KVOA became the first station in Tucson to broadcast local news in HDTV. During the 2009 Super Bowl, Comcast's transmission of the station was interrupted for approximately 20 seconds replacing KVOA's broadcast of the game with soft-core porn, affecting Comcast's analog subscribers in portions of the Tucson area.[5] The substitution appears to have been made at Comcast, not at KVOA, leav Source: http://en.wikipedia.org/wiki/KVOA