I realize there are a lot of these, so I've kind of arbitrarily picked. Feel free to share your favorites (or least favorites, I suppose) in the comments!
1. The Tortellis, spun off from Cheers. Based on Carla's ex-husband Nick and his new wife and family, it was only on the air for three episodes in 1987.
2. Day by Day, spun off from Family Ties. Loosely spun off, anyway. It starred Thora Birch, Julia Louis-Dreyfus and Courtney Thorne-Smith, among others. The connection to... READ ON