Season 4
6 episodes · first aired 1974-09-15
| Still | # | Title | Overview | Air date | Rating |
|---|---|---|---|---|---|
 | 01 | An Exercise in Fatality 1974-09-15 | A health club owner kills his partner who is about to uncover a fraud and makes it look like an accident | 1974-09-15 | 7.3 |
 | 02 | Negative Reaction 1974-10-15 | Brilliant photographer Paul Galesko plans to murder his domineering wife, Frances, and pin the crime on an ex-convict named Alvin Deschler. His plan is to make it look as if Alvin kidnapped his wife and killed her before picking up the ransom money. | 1974-10-15 | 7.8 |
 | 03 | By Dawn's Early Light 1974-10-27 | The head of a military school kills one of the governors by sabotaging the gun which is used on founders day. | 1974-10-27 | 7.7 |
 | 04 | Troubled Waters 1975-02-09 | While holidaying on board a cruise liner, Columbo helps capture the killer of the singer with the ship's band. | 1975-02-09 | 7.7 |
 | 05 | Playback 1975-03-02 | An inventor video tapes his mother-in-law's death, and then replays it back to the security guard, to give himself an alibi. | 1975-03-02 | 7.5 |
 | 06 | A Deadly State of Mind 1975-04-27 | A doctor kills the husband of the woman he is having an affair with but is seen leaving the house by a witness who is happens to be blind. | 1975-04-27 | 7.0 |
Ratings shown are community scores. Once OMDB is wired, these become per-episode IMDB values.