Columbo - Season 7 - Eps 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 wife's lover is. The call serves as the first step in a conditioning reflex on the psychiatrist's 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 there's the telephone that's hanging from it's hook.
About Columbo

Title: Columbo
First Air Date: 1971-09-15
Last Air Date: 2003-01-30
Status: Ended
Rating: 8.079/10 (from 727 votes)
Language: EN
Seasons: 11
Total Episodes: 67
Network: ABC NBC
Genres: Crime, Drama
Production Companies: Universal Television, Studios USA, Universal Television Entertainment, NBC Studios
Synopsis
Columbo is a friendly, verbose, disheveled-looking police detective who is consistently underestimated by his suspects. Despite his unprepossessing appearance and apparent absentmindedness, he shrewdly solves all of his cases and secures all evidence needed for indictment. His formidable eye for detail and meticulously dedicated approach often become clear to the killer only late in the storyline.
Cast

Peter Falk
Columbo