Columbo - Season 7 Episode 4
How to Dial a Murder

A famous psychiatrist uses an appointment with his doctor as his alibi while he calls his house, where his dead wifes lover is. The call serves as the first step in a conditioning reflex on the psychiatrists dogs. The other part is the word Rosebud as uttered by the victim. When Columbo arrives on the scene, the psychiatrist is very understanding when police say they may have to put his dogs to death. But Columbo notices how friendly the dogs seem, and then theres the telephone thats hanging from its hook.