Which sitcom (incidentally, both broadcast on NBC) do you think may have most inadvertently influenced other sitcoms for the worse (due in no small part, to how successful they were) of their respected time periods? To give you some proper perspective of what I'm talking about and where I'm getting at...:
The OTHER Diff'rent Strokes Curse (http://www.sitcomsonline.com/boards/showthread.php?t=325685)

The fallacies: 6 ways "Friends" hurt the sitcom (http://www.sitcomsonline.com/boards/showthread.php?t=108583)