You'd think life on a Texas oil ranch and mansion named "Southfork" would be sublime, but not so for this feuding bunch. For 357 episodes, Dallas revolved around the wealthy Ewing family -- oil baron and patriarch Jock Ewing; his wife, Miss Ellie; and their sons, JR, Bobby, and black sheep Gary. When JR was shot in the finale of the third season, "Who Shot JR?" mania swept across the country -- and much of the world. But viewers had to wait until four episodes into the new season to find out who pulled the trigger. The episode titled "Who Done It?" was the second-most-watched show in the history of television.