The Simpsons Spin-Off Showcase unoriginal, poor television writing and references and parodies many television series. When Troy McClure mentions that Fox can only fill up three slots for the next season, the three series are "Melrose Place", "The X-Files" and "The Simpsons" itself. In the museum of television, Troy walks by posters of spin-offs, such as "The Ropers" (spun off from "Three's Company"), "Laverne & Shirley" (spun off from "Happy Days"), "Rhoda", a show that Julie Kavner, the voice of Marge, once starred in, (spun off from "The Mary Tyler Moore Show") and "Fish" (spun off from "Barney Miller"), to demonstrate the power of
1978–79 United States network television schedule Co-Ed Fever aired on February 4 from 10:30 to 11:00 p.m., after which the show was cancelled. "Moses the Lawgiver" was a rerun of the 1975 miniseries. "Mr. Dugan" was supposed to premiere March 11, 1979 between "All in the Family" and "Alice" but due to black Congressmembers' criticism of it after a preview for them, the show was never broadcast. Notes: The "Wheels" segment of "NBC Novels for Television" was a rerun of the 1978 television miniseries. "Laugh-In" consisted of reruns of the 1977 television series. Note: Mork & Mindy had a one-hour premiere on September 14, 1978. Note: