You'd think Robert Culp would have learned not to tangle with Columbo but one year after he first played a murderer on the show he played another one in an episode appropriately called "Double Exposure". He is pretty perfect as an adversary for Columbo. He smoothly transitions from comfortably smug to bitterly exasperated.
This time he plays some kind of advertising guru who kills a client during the screening of a commercial. Columbo (Peter Falk), as usual, goes overboard in praising the prime suspect, even checking out books from the library Culp's character wrote. The two have nice chemistry.
Two other notable scenes feature a projectionist letting Columbo in on a few tricks of his trade and Columbo wandering around the supermarket. Both are nice little slices of that vanished world of 1970s America.
Columbo is available with commercials on Amazon Prime.