“Once upon a time, every TV show had one, many of them memorable, if not great. Viewers who never sat through an entire episode of ‘The Beverly Hillbillies’ or ‘Gilligan’s Island’ can nevertheless hum the songs and recall the little stories these title sequences told. In recent years, pressure to keep viewers from flirting with the remote when familiar theme music starts up has made the cold open more popular. But the memorable title sequence is far from dead.”