We often have fond memories of TV shows we grew up with. Many of them, on rewatching as a adult, don't stand up. Columbo is one of the few that has not dated and is still as good as it was when it was first on. This is due not only to Peter Falk's great job in the lead, but also to consistently first class writing, direction, and production. The episode directed by Steven Spielberg even has a tribute to Citizen Kane.
Falk is buried in the must-see Pierce Brothers Westwood Memorial Park. His headstone is a tribute to his beloved wife, and protector of his estate (from his evil daughter), Shera Danese. She appeared on Columbo six times, more than any other guest actor. The real "Mrs. Columbo" indeed.