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
Marvel Television animated shows being more successful than the live action shows. "The Incredible Hulk" (1978–1982), produced by Universal Television and aired on CBS, was Marvel's only successful live action television series, running five seasons. The last TV series, "", produced by New Line Television (now ceased and folded into Warner Bros. Television), was canceled after one season on Spike. Marvel's first live action TV licenses were for Spider-Man with the character in The Electric Company's Spidey Super Stories segments (1974–1977), CBS's "The Amazing Spider-Man" series (1977–1979) and Toei's tokusatsu style "Spider-Man" series (1978–1979). "The Amazing Spider-Man" pulled in reasonable ratings but