Joanie Loves Chachi, 1982-83
The bad spin-off by which all subsequent bad spin-offs are measured. In this Happy Days stepchild, Chachi (Scott Baio), the Fonz's younger cousin, moves to Chicago with Joanie (Erin Moran), Richie Cunningham's younger sister, to start a band. They sang a lot, Joanie and Chachi. Not always very well, as is clear in this clip. There were stereotypically named characters Mario, Rico, Bingo and stereotypically cheesy songs. The main characters soon returned to Happy Days. After the show was canceled, that is.

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