Season 5 surely began with its share of unusual moments. In addition to the great surprise ending to "Forgotten Lady," Columbo wears a tuxedo in BOTH of the first two episodes.

Doesn't he wear a tux in "Any Port in a Storm"? It's been a while since I've seen that ep, but think he does . . . doesn't he say something about a nephew in a community college taking a heating/air conditioning program and who works as a waiter . . . the explanation for having access to a tux.

Murder Under Glass, at the Restaurant Writers' Dinner.