6. Ferris Bueller (NBC, 1990-1991)
Starred: Charlie Schlatter, Brandon Douglas, Ami Dolenz, Jennifer Aniston, Richard Riehle, Cristine Rose, Sam Freed, Judith Kahn
This series is pure blasphemy in every regard. This unnecessary movie-to-television spin-off completely disrespects the classic film. In the series, Ferris Bueller's Day Off exists within the show universe but is treated with disdain as a film based on the gang's real-life adventures. So it's not even a continuation, but an unholy sequel/spin-off hybrid that just further proved its pointlessness.
To top it off, Charlie Schlatter is the worst Matthew Broderick stand-in imaginable, making up for a complete lack of Broderick's charm and swag with smarmy douchiness.