Noticeably absent from that promo film was KBSC-TV/52 in Los Angeles, which had not only three network O&Os but four independents ... all on VHF. They had originally intended to provide subscription TV service but were delayed by a variety of legal challenges (at one point, voters passed a ballot proposition that forbade over-the-air pay TV anywhere in the state).
Facing the deadline of a final extension of their construction permit, they signed on as KMTW (the call letters standing for Mount Wilson, where the channel 52 transmitter was located) June 29, 1966 with a nightly four hour schedule of freebie travelogues, airing in monochrome! They changed call letters in 1968, but it wasn't until 1971 that they upgraded the signal to 55kW and leased a floor at Metromedia Square (where KTTV/11 lived) as a main studio location. The programming was haphazard at best, starting with a block of kid-friendly programs that ranged from Felix The Cat to the Little Rascals, even including some early anime in the form of Gigantor and Kimba The White Lion. They actually sold a half-hour every night to the Santa Anita racetrack for horse racing highlights, which was followed by Hollywood Television Theatre with a neverending parade of forgettable movies (the only benefit was that by the end of the first reel they had run out of commercials for the day and just let the movie run, signing off whenever it ended). Weekends were brokered to Japanese and Korean production companies.
That ended in 1977, when Kaiser sold KBSC to Oak Industries, which proceeded to take advantage of the FCC's original subscription television authorization to launch ON TV. But as cable penetration started to erode their audience, they eventually threw in the towel and sold out in 1985 to the then-new Telemundo network.
KBSC-TV was the black sheep in the Kaiser Broadcasting family.