21 forgotten TV subplots - The A.V. Club →

Link: 21 forgotten TV subplots - The A.V. Club

You could almost do an entire article about the many forgotten subplots in Lost alone. I particularly like their write-up of the Tori Scott episodes of Saved by the Bell

> > When NBC ordered more episodes of the show’s already-wrapped senior year, Tiffani-Amber Thiessen and Elizabeth Berkley were already committed to other projects. So, employing its signature logic, _Saved By The Bell_ allowed the characters to disappear completely, bringing in Leanna Creel’s motorcycle-riding tomboy Tori to replace them—and thus creating the “Tori Reality,” a parallel universe centered on Zack and Tori’s awkward courtship, a place where Kelly and Jessie simply did not exist. > >