| Title(Year of production) | In charge | Average | Number of reviews |
| Columbo: Columbo Likes the Nightlife (2003) | Writer | 4.60 / 10.0 | 5 |
| Columbo: Murder with Too Many Notes (2000) | Writer | 4.30 / 10.0 | 10 |
| Columbo:Ashes To Ashes (1998) | Writer | 5.40 / 10.0 | 5 |
| Columbo: A Trace of Murder (1997) | Writer | 5.12 / 10.0 | 8 |
| Columbo: Strange Bedfellows (1995) | Writer | 2.83 / 10.0 | 6 |
| Columbo: Undercover (1994) | Writer | 4.00 / 10.0 | 5 |
| Columbo: Butterfly in Shades of Grey (1993) | Writer | 4.28 / 10.0 | 7 |
| Columbo: It's All in the Game (1993) | Writer | 5.16 / 10.0 | 6 |
| Columbo: No Time to Die (1992) | Writer | 3.66 / 10.0 | 6 |
| Columbo: A Bird in the Hand ... (1992) | Writer | 4.66 / 10.0 | 6 |
| Whispers in the Dark (1992) | Executive Producer | | 0 |
| Columbo: Death Hits the Jackpot (1991) | Writer | 5.16 / 10.0 | 6 |
| Columbo: Caution - Murder Can Be Hazardous to Your Health (1991) | Writer | 5.00 / 10.0 | 5 |
| COLUMBO AND THE MURDER OF A ROCK STAR (1991) | Writer | 4.40 / 10.0 | 5 |
| Columbo: Rest In Peace Mrs. Columbo (1990) | Writer, Executive Producer | 4.09 / 10.0 | 11 |
| Columbo: Columbo Goes To College (1990) | Writer | 4.86 / 10.0 | 15 |
| Columbo: Agenda for Murder (1990) | Writer, Executive Producer | 5.54 / 10.0 | 11 |
| Columbo: Murder in Malibu (1990) | Writer, Executive Producer | 6.66 / 10.0 | 6 |
| Columbo: Uneasy Lies The Crown (1990) | Writer, Executive Producer | 4.50 / 10.0 | 4 |
| Columbo: Columbo Cries Wolf (1989) | Writer, Screenwriter, Executive Producer | 5.33 / 10.0 | 12 |
| Columbo: Grand Deceptions (1989) | Writer, Executive Producer | 4.10 / 10.0 | 10 |
| Columbo: Sex And The Married Detective (1989) | Writer, Executive Producer | 5.12 / 10.0 | 8 |
| Columbo: Columbo Goes to the Guillotine (1989) | Writer, Executive Producer | 5.46 / 10.0 | 13 |
| Columbo: Murder, Smoke and Shadows (1989) | Writer, Executive Producer | 4.66 / 10.0 | 6 |
| Columbo: Murder, a Self Portrait (1989) | Writer, Executive Producer | 3.83 / 10.0 | 6 |
| Rehearsal for Murder (1982) | Screenwriter, Executive Producer | 7.50 / 10.0 | 2 |
| The Hunter (1980) | Screenwriter | 6.30 / 10.0 | 33 |
| Columbo: The Conspirators (1978) | Writer | 6.30 / 10.0 | 23 |
| COLUMBO: How to Dial a Murder (1978) | Writer | 4.94 / 10.0 | 17 |
| Columbo: Make Me a Perfect Murder (1977) | Writer | 6.55 / 10.0 | 27 |