Jumping the Shark

We just had a discussion at work about when various TV shows jumped the shark (click for definition), and these are our conclusions.Happy Days - when Fonzie jumped the shark - DUH!Buffy The Vampire Slayer - moved to UPNFriends - Monica and Chandler got together, or when Rachel got pregnantER - A fire/tank/helicopter/deadly virus/radiation leak/blackout threatens the ERCharlie's Angels - Sabrina (