Boston's former Bull & Finch pub was paid $1 to be the location for "Cheers," and banks on its nostalgic fame today with merch and menus as Cheers Beacon Hill. Plenty of real places served as the location for classic sitcoms, at least for the exterior shots. In New York City, for instance, you can visit the apartment building from "Friends," or the diner that stood in as Monk's on "Seinfeld." And if you hap... [2551 chars]