Idiom of the day: Jump The Shark From
today's CNN:
It ("Frasier") had its faults -- some say it jumped the shark when Niles and Daphne got married...jump the shark v. In a television show, to include an over-the-top scene or plot twist that is indicative either of an irreversible decline in the show's quality or of a desperate bid to stem the show's declining ratings. Also:
JTS.