Cracking Up (1977) on Netflix

Plot summary

A 9.7 magnitude earthquake is imagined striking the Los Angeles area, and the aftermath becomes the frame for a run of comedy sketches. Two television reporters, Walter Concrete and Barbara Halters, work the disaster, interviewing survivors, and each of those interviews sets up the sketch that follows. The actors perform material of their own, and the troupes behind them come out of the improvisational comedy scene of the 1960s and 1970s, several of them former Second City members. Television news and sitcoms are the targets of the sketches, and the earthquake stays on the lighter side. The Tubes provide the music.