TV Sitcom Changes

Steve Carell will leave the office and can it go on? Spin City went on without Michael J. Fox, Charlie's Angel's went on without Farrah, Three's Company went on without Suzanne Sommers We accepted a new Darrin on Bewitched . Woody and Rebecca replacing Coach and Diane on Cheers. Colonel Potter and Capt. Hunnicut replacing Blake and McIntire on M*A*S*H. Yes, The Office will go on as it, as the others, have strong supporting casts. What would have happened to Seinfeld or Friends if one of them had bowed out? The thing that worries me most is will American Idol survive without Simon?