'Who Shot J.R.?': TV's Best Cliffhanger

Americans flocked in record numbers to their television sets thirty years ago this week for the answer to a question that had been top of mind for months. I'm referring to the November 21, 1980 episode of Dallas, which resolved the greatest TV cliffhanger ever: Who Shot J.R.? It was a scripted series phenomenon the likes of which people hadn't seen since the birth of Little Ricky on I Love Lucy in January, 1953. That Dallas milestone is the second highest rated episode of a television series in the history of the medium, topped only by the finale of M*A*S*H in February, 1983.