Night of the Living Dead

"Medium" (Friday, Sept. 25, at 9 p.m. on CBS)

"I was trying to write an ending so provocative that it would be impossible to cancel the show," says creator Glen Gordon Caron of the show's season finale, which finds Allison in a coma. Though it didn't get canceled, it did move... more from NBC to CBS, where it will be paired with "Ghost Whisperer." Spoiler: Allison wakes up. The show will also pay tribute to "Night of the Living Dead" this season, with the cast being inserted into actual clips from the film.