It's always tempting at this time of year to look for patterns where perhaps none exist. With four confirmed cancellations ('Charlie's Angels,' 'The Playboy Club,' 'How to be a Gentleman' and 'Free Agents') and several on-the-bubble new shows ('Pan Am,' 'Prime Suspect,' 'Body of Proof'), the only real theme (besides being awful) is a tendency to take themselves too seriously. I do take some satisfaction from seeing all the nostalgia shows die an early death. Apparently the one thing 'The Playboy Club' team didn't look up about 'Mad Men' were the ratings -- a couple million viewers. It was also the only thing they were able to duplicate.