The episode "Libra" was written by popular comic book writer and artist Bob Layton.
Originally aired as a 60-minute episode, but has been formatted as two 30-minute episodes in most subsequent re-airings for scheduling reasons. While many guides list it as a two-parter, its initial airing and release on DVD as one double-length episode should make this the official recognition.
The movie that's playing on TV while Violet MacReady is talking to Max Bailey in the hospital is Creepshow (1982), an anthology movie which tells five terrifying tales inspired by the E.C. horror comic books of the 1950s.