1979-00-00 English Channel (purchased by USA Network in 1980 and absorbed into the network, dates unknown)
1979-00-00 WTCG renamed WTBS
1979-01-00 Modern Satellite Network (five hours a day on an HBO West feed, not sure when it disappearred but may have been used as filler programming for cable operators to use at their discretion such as during SYNDEX mandated blackouts)
1979-01-00 Star Channel on satellite, month known, day unknown
1979-01-01 "C-3", a cable children's network which launched the "Pinwheel" program on a QUBE system in Columbus, Ohio, changed its name to the "Pinwheel Channel".
1979-01-03 the satellite-delivered Madison Square Garden Network was renamed UA-Columbia, serving as the cable syndicated arm of the New York regional network Madision Square Garden Network, PRISM in Philadelphia, and whatever pay/cable outlets were around.
1979-03-19 C-SPAN (Cable-Satellite Public Affairs Network) daytime only, shared with but is not part of the UA-Columbia network
1979-04-00 WOR-TV on satellite, day unknown
1979-04-01 "Pinwheel" became a cornerstone block for the just-launched-on-this-date Nickelodeon cable network. It began featuring "Pinwheel" as a series of three to five-hour blocks that is part of its broadcast schedule.
1979-04-01 Star Channel shared space with Nickelodeon for a while at this point
1979-06-19 American Educational Television Network (sharing with the Showtime West feed)
1979-04-02 (some say Oct 1979) Galavision (PAY)
1979-04-15 Cornerstone Television
1979-04-16 Cinemerica (PAY) was launched around this date. It was movies for adults age 50 and older
1979-07-01 Christian Communications Network (San Diego, full time)
1979-08-00 (some say Oct 1979) ACSN or Appalachian Community Service Network on satellite
1979-09-00 Sports Channel America (PAY), day unknown
1979-09-07 ESPN (Entertainment and Sports Programming Network)
1979-12-03 Star Channel renamed The Movie Channel