| Season | Episode Title | Air Date | Air Time | Channel | Country | #Creds | #Pics |
|---|
| 1 | Pilot | 03/28/1967 | 8:30 pm | NBC | USA | 24 | |
| 1 | Message From Beyond | 09/14/1967 | 8:30 pm | NBC | USA | | |
| 1 | The Leaf in the Forest | 09/21/1967 | 8:30 pm | NBC | USA | 15 | |
| 1 | Dead Man's Tale | 09/28/1967 | 8:30 pm | NBC | USA | 10 | |
| 1 | Eat, Drink and be Buried | 10/05/1967 | 8:30 pm | NBC | USA | 11 | |
| 1 | The Taker | 10/12/1967 | 8:30 pm | NBC | USA | 11 | |
| 1 | An Inside Job | 10/19/1967 | 8:30 pm | NBC | USA | 9 | |
| 1 | Tagged For Murder | 10/26/1967 | 8:30 pm | NBC | USA | 11 | |
| 1 | Let My Brother Go | 11/02/1967 | 8:30 pm | NBC | USA | 6 | |
| 1 | Light at the End of the Journey | 11/09/1967 | 8:30 pm | NBC | USA | 6 | |
| 1 | The Monster of Comus Towers | 11/16/1967 | 8:30 pm | NBC | USA | 11 | |
| 1 | The Man Who Believed | 11/23/1967 | 8:30 pm | NBC | USA | 7 | |
| 1 | The Very Cool Hot Car | 11/30/1967 | 8:30 pm | NBC | USA | 5 | |
| 1 | The Past is Prologue | 12/07/1967 | 8:30 pm | NBC | USA | 17 | |
| 1 | Girl in the Night | 12/21/1967 | 8:30 pm | NBC | USA | 3 | |
| 1 | The Fourteenth Runner | 12/28/1967 | 8:30 pm | NBC | USA | 3 | |
| 1 | Force of Arms | 01/04/1968 | 8:30 pm | NBC | USA | 5 | |
| 1 | Memory of an Ice Cream Stick | 01/11/1968 | 8:30 pm | NBC | USA | 6 | |
| 1 | To Kill a Cop | 01/25/1968 | 8:30 pm | NBC | USA | 2 | |
| 1 | The Lonely Hostage | 02/01/1968 | 8:30 pm | NBC | USA | 3 | |
| 1 | The Challenge | 02/08/1968 | 8:30 pm | NBC | USA | 4 | |
| 1 | All in a Day's Work | 02/15/1968 | 8:30 pm | NBC | USA | 1 | |
| 1 | Something for Nothing | 02/22/1968 | 8:30 pm | NBC | USA | 3 | |
| 1 | Barbara Who | 02/29/1968 | 8:30 pm | NBC | USA | 2 | |
| 1 | Perfect Crime | 03/07/1968 | 8:30 pm | NBC | USA | 3 | |
| 1 | Officer Bobby | 03/14/1968 | 8:30 pm | NBC | USA | 9 | |
| 1 | Trip to Hashbury | 03/21/1968 | 8:30 pm | NBC | USA | 6 | |
| 1 | Due Process of Law | 03/28/1968 | 8:30 pm | NBC | USA | 4 | |
| 1 | Return of the Hero | 04/04/1968 | 8:30 pm | NBC | USA | 4 | |
| The Shell Game | 09/19/1968 | 8:30 pm | NBC | USA | 2 | |
| Split Second to an Epitataph | 09/26/1968 | 8:30 pm | NBC | USA | 6 | |
| 2 | The Sacrifice | 10/03/1968 | 8:30 pm | NBC | USA | 5 | |
| Robert Phillips vs. The Man | 10/10/1968 | 8:30 pm | NBC | USA | 2 | |
| 2 | Desperate Encounter | 10/24/1968 | 8:30 pm | NBC | USA | 3 | |
| 2 | I, the People | 10/31/1968 | 8:30 pm | NBC | USA | 5 | |
| Price Tag Death | 11/07/1968 | 8:30 pm | NBC | USA | 2 | |
| 2 | An Obvious Case of Guilt | 11/14/1968 | 8:30 pm | NBC | USA | 2 | |
| 2 | Reprise | 11/21/1968 | 8:30 pm | NBC | USA | 4 | |
| 2 | The Macabre Mr. Micawber | 11/28/1968 | 8:30 pm | NBC | USA | 1 | |
| 2 | Side Pocket | 12/05/1968 | 8:30 pm | NBC | USA | 3 | |
| Sgt. Mike | 12/12/1968 | 8:30 pm | NBC | USA | 3 | |
| 2 | In Search of an Artist | 01/02/1969 | 8:30 pm | NBC | USA | 1 | |
| Up, Down and Even | 01/09/1969 | 8:30 pm | NBC | USA | 3 | |
| Why the Tuesday Afternoon Bridge Club Met Thursday | 01/23/1969 | 8:30 pm | NBC | USA | 3 | |
| 2 | Rundown on a Bum Rap | 01/30/1969 | 8:30 pm | NBC | USA | 3 | |
| 2 | The Prophecy | 02/06/1969 | 8:30 pm | NBC | USA | 3 | |
| The World of Jackels | 02/13/1969 | 8:30 pm | NBC | USA | 3 | |
| 2 | And Be My Love | 02/20/1969 | 8:30 pm | NBC | USA | 1 | |
| 2 | Moonlight Means Money | 02/27/1969 | 8:30 pm | NBC | USA | 4 | |
| 2 | A Drug on the Market | 03/06/1969 | 8:30 pm | NBC | USA | 3 | |
| 2 | Puzzlelock | 03/13/1969 | 8:30 pm | NBC | USA | 2 | |
| 2 | The Tormentor | 03/27/1969 | 8:30 pm | NBC | USA | 2 | |
| 2 | A Matter of Love and Death | 04/03/1969 | 8:30 pm | NBC | USA | 3 | |
| Not With a Whimper But a Bang | 04/10/1969 | 8:30 pm | NBC | USA | 3 | |
| 3 | Alias Mr. Braithwaite | 09/18/1969 | 8:30 pm | NBC | USA | 13 | |
| Good-by to Yesterday | 09/25/1969 | 8:30 pm | NBC | USA | | |
| 3 | Poole's Paradise | 10/02/1969 | 8:30 pm | NBC | USA | 13 | |
| 3 | Eye of the Hurricane | 10/09/1969 | 8:30 pm | NBC | USA | 15 | |
| 3 | A Bullet for Mark | 10/16/1969 | 8:30 pm | NBC | USA | 16 | |
| 3 | Love My Enemy | 10/23/1969 | 8:30 pm | NBC | USA | 11 | |
| Seeing is Believing | 10/30/1969 | 8:30 pm | NBC | USA | | |
| 3 | The Machismo Bag | 11/13/1969 | 8:30 pm | NBC | USA | 12 | |
| Programmed For Danger | 11/20/1969 | 8:30 pm | NBC | USA | | |
| 3 | Five Miles High | 11/27/1969 | 8:30 pm | NBC | USA | 14 | |
| 3 | L'Chayim | 12/04/1969 | 8:30 pm | NBC | USA | 14 | |
| 3 | Beyond a Shadow | 12/11/1969 | 8:30 pm | NBC | USA | 12 | |
| 3 | Stolen on Demand | 12/25/1969 | 8:30 pm | NBC | USA | 13 | |
| 3 | Dora | 01/08/1970 | 8:30 pm | NBC | USA | 14 | |
| 3 | Beware the Wiles of the Stranger | 01/22/1970 | 8:30 pm | NBC | USA | 13 | |
| Eden is the Place We Leave | 01/29/1970 | 8:30 pm | NBC | USA | | |
| The Wrong Time, The Wrong Place | 02/05/1970 | 8:30 pm | NBC | USA | | |
| 3 | Return to Fiji | 02/12/1970 | 8:30 pm | NBC | USA | 12 | |
| 3 | Ransom | 02/19/1970 | 8:30 pm | NBC | USA | 9 | |
| 3 | One Hour to Kill | 02/26/1970 | 8:30 pm | NBC | USA | 11 | |
| 3 | Warrior's Return | 03/05/1970 | 8:30 pm | NBC | USA | 13 | |
| 3 | Little Jerry Jessup | 03/12/1970 | 8:30 pm | NBC | USA | 12 | |
| 3 | Good Will Tour | 03/26/1970 | 8:30 pm | NBC | USA | 11 | |
| 3 | Little Dog, Gone | 04/02/1970 | 8:30 pm | NBC | USA | 16 | |
| Tom Dayton is Loose Among Us | 04/09/1970 | 8:30 pm | NBC | USA | | |
| 4 | A Killing Will Occur | 09/17/1970 | 8:30 pm | NBC | USA | 12 | |
| No Game For Amateurs | 09/24/1970 | 8:30 pm | NBC | USA | | |
| 4 | The Happy Dreams of Hollow Men | 10/01/1970 | 8:30 pm | NBC | USA | 8 | |
| 4 | The People Against Judge McIntire | 10/08/1970 | 8:30 pm | NBC | USA | 11 | |
| 4 | Noel's Gonna Fly | 10/15/1970 | 8:30 pm | NBC | USA | 14 | |
| 4 | The Lonely Way to Go | 10/22/1970 | 8:30 pm | NBC | USA | 12 | |
| Checkmate: And Murder | 11/05/1970 | 8:30 pm | NBC | USA | | |
| 4 | Too Many Victims | 11/12/1970 | 8:30 pm | NBC | USA | 10 | |
| 4 | The Man on the Inside | 11/19/1970 | 8:30 pm | NBC | USA | 14 | |
| 4 | Backfire | 12/03/1970 | 8:30 pm | NBC | USA | 12 | |
| 4 | The Laying on of Hands | 12/10/1970 | 8:30 pm | NBC | USA | 11 | |
| 4 | This Could Blow Your Mind | 12/17/1970 | 8:30 pm | NBC | USA | 14 | |
| 4 | Blackout | 12/31/1970 | 8:30 pm | NBC | USA | 13 | |
| 4 | The Quincunx | 01/07/1971 | 8:30 pm | NBC | USA | 11 | |
| From Hruska With Love | 01/21/1971 | 8:30 pm | NBC | USA | | |
| 4 | The Target | 01/28/1971 | 8:30 pm | NBC | USA | 13 | |
| A Killing at the Track | 02/04/1971 | 8:30 pm | NBC | USA | | |
| 4 | Escape | 02/11/1971 | 8:30 pm | NBC | USA | 13 | |
| Love, Peace, Brotherhood, and Murder | 02/18/1971 | 8:30 pm | NBC | USA | 25 | |
| 4 | The Riddle in Room Six | 02/25/1971 | 8:30 pm | NBC | USA | 17 | |
| 4 | The Summer Soldier | 03/04/1971 | 8:30 pm | NBC | USA | 11 | |
| The Accident | 03/11/1971 | 8:30 pm | NBC | USA | | |
| 4 | Lesson in Terror | 03/18/1971 | 8:30 pm | NBC | USA | 14 | |
| 4 | Grandmother's House | 04/01/1971 | 8:30 pm | NBC | USA | 1 | |
| 4 | Walls Are Waiting | 04/15/1971 | 8:30 pm | NBC | USA | 12 | |
| Contract: Kill Ironside | 09/21/1971 | 7:30 pm | NBC | USA | | |
| 5 | The Professionals | 09/28/1971 | 7:30 pm | NBC | USA | 18 | |
| 5 | The Gambling Game | 10/05/1971 | 7:30 pm | NBC | USA | 16 | |
| 5 | Ring of Prayer | 10/12/1971 | 7:30 pm | NBC | USA | 14 | |
| 5 | In the Line of Duty | 10/19/1971 | 7:30 pm | NBC | USA | 16 | |
| 5 | Joss Sticks and Wedding Bells | 10/26/1971 | 7:30 pm | NBC | USA | 14 | |
| 5 | Murder Impromptu | 11/02/1971 | 9:00 pm | NBC | USA | 16 | |
| Dean Fran | 11/09/1971 | 9:00 pm | NBC | USA | | |
| The Good Samaritan | 11/23/1971 | 9:00 pm | NBC | USA | | |
| 5 | License to Kill | 12/02/1971 | 9:00 pm | NBC | USA | 19 | |
| 5 | Class of '57 | 12/16/1971 | 9:00 pm | NBC | USA | 16 | |
| 5 | No Motive for Murder | 12/23/1971 | 9:00 pm | NBC | USA | 10 | |
| 5 | But When She Was Bad | 12/30/1971 | 9:00 pm | NBC | USA | 9 | |
| 5 | Unreasonable Facsimile | 01/06/1972 | 9:00 pm | NBC | USA | 12 | |
| 5 | Find a Victim | 01/13/1972 | 9:00 pm | NBC | USA | 17 | |
| 5 | And Then There Was One | 01/20/1972 | 9:00 pm | NBC | USA | 20 | |
| Death By the Numbers | 01/27/1972 | 9:00 pm | NBC | USA | | |
| Bubble Bubble Toil and Murder | 02/03/1972 | 9:00 pm | NBC | USA | | |
| 5 | Achilles' Heel | 02/17/1972 | 9:00 pm | NBC | USA | 20 | |
| His Fiddlers' Three | 03/02/1972 | 9:00 pm | NBC | USA | | |
| 5 | A Man Named Arno | 03/09/1972 | 9:00 pm | NBC | USA | 14 | |
| Five Days in the Death of Sgt. Brown | 09/14/1972 | 9:00 pm | NBC | USA | | |
| 6 | The Savage Sentry | 09/21/1972 | 9:00 pm | NBC | USA | 12 | |
| Programmed For Panic | 09/28/1972 | 9:00 pm | NBC | USA | | |
| 6 | Down Two Roads | 10/12/1972 | 9:00 pm | NBC | USA | 13 | |
| Camera....Action...Murder! | 10/26/1972 | 9:00 pm | NBC | USA | | |
| 6 | Riddle Me Death | 11/02/1972 | 9:00 pm | NBC | USA | 16 | |
| 6 | Nightmare Trip | 11/09/1972 | 9:00 pm | NBC | USA | 20 | |
| Hey Buddy Can You Spare a Life | 11/16/1972 | 9:00 pm | NBC | USA | | |
| Countdown | 11/23/1972 | 9:00 pm | NBC | USA | | |
| The Deadly Gamesman | 11/30/1972 | 9:00 pm | NBC | USA | | |
| Who'll Cry For My Baby? | 12/07/1972 | 9:00 pm | NBC | USA | | |
| 6 | Cold Hard Cash | 12/14/1972 | 9:00 pm | NBC | USA | 16 | |
| 6 | Shadow Soldiers | 12/21/1972 | 9:00 pm | NBC | USA | 13 | |
| 6 | Ollinger's Last Case | 01/04/1973 | 9:00 pm | NBC | USA | 10 | |
| 6 | A Special Person | 01/11/1973 | 9:00 pm | NBC | USA | 9 | |
| 6 | The Caller | 01/25/1973 | 9:00 pm | NBC | USA | 9 | |
| 6 | Love Me in December | 02/01/1973 | 9:00 pm | NBC | USA | 14 | |
| 6 | The Ghost of the Dancing Doll | 02/15/1973 | 9:00 pm | NBC | USA | 16 | |
| 6 | All About Andrea | 02/22/1973 | 9:00 pm | NBC | USA | 13 | |
| 6 | Another Shell Game | 03/01/1973 | 9:00 pm | NBC | USA | 15 | |
| 6 | All Honorable Men | 03/08/1973 | 9:00 pm | NBC | USA | 16 | |
| 6 | The Best Laid Plans | 03/15/1973 | 9:00 pm | NBC | USA | 17 | |
| Game of Showdown | 03/22/1973 | 9:00 pm | NBC | USA | | |
| 7 | Confessions: From a Lady of the Night | 09/13/1973 | | | USA | 14 | |
| 7 | Murder by One | 09/20/1973 | | | USA | 9 | |
| 7 | In the Forests of the Night | 09/27/1973 | | | USA | 13 | |
| 7 | Fragile Is the House of Cards | 10/04/1973 | | | USA | 10 | |
| 7 | The Armageddon Gang | 10/11/1973 | | | USA | 14 | |
| 7 | House of Terror | 10/25/1973 | | | USA | 12 | |
| 7 | The Helping Hand | 11/01/1973 | | | USA | 12 | |
| 7 | Downhill All the Way | 11/08/1973 | | | USA | 26 | |
| 7 | Mind for Murder | 11/15/1973 | | | USA | 11 | |
| 7 | The Hidden Man | 11/29/1973 | | | USA | 15 | |
| 7 | Double-Edged Corner | 12/06/1973 | | | USA | 13 | |
| 7 | The Last Payment | 12/20/1973 | | | USA | 16 | |
| 7 | Friend or Foe | 01/03/1974 | | | USA | 17 | |
| 7 | Two Hundred Large | 01/10/1974 | | | USA | 12 | |
| 7 | Once More for Joey | 01/17/1974 | | | USA | 14 | |
| 7 | Terror on Grant Avenue | 01/31/1974 | | | USA | 10 | |
| 7 | Class of '40 | 02/07/1974 | | | USA | 14 | |
| 7 | The Taste of Ashes | 02/14/1974 | | | USA | 12 | |
| 7 | A Death in Academe | 02/21/1974 | | | USA | 11 | |
| 7 | Close to the Heart | 02/28/1974 | | | USA | 12 | |
| 7 | Come Eleven, Come Twelve | 03/07/1974 | | | USA | 14 | |
| 7 | Riddle at 24,000 | 03/14/1974 | | | USA | 12 | |
| 7 | Amy Prentiss: Part 1 | 05/23/1974 | | | USA | 29 | |
| 8 | Raise the Devil: Part 1 | 09/12/1974 | | | USA | 15 | |
| 8 | Raise the Devil: Part 2 | 09/19/1974 | | | USA | 14 | |
| 8 | What's New with Mark? | 09/26/1974 | | | USA | 15 | |
| 8 | Trial by Terror | 10/03/1974 | | | USA | 13 | |
| 8 | Cross Doublecross | 10/10/1974 | | | USA | 12 | |
| 8 | Setup: Danger! | 10/24/1974 | | | USA | 13 | |
| 8 | The Lost Cotillion | 10/31/1974 | | | USA | 15 | |
| 8 | Run Scared | 11/07/1974 | | | USA | 16 | |
| 8 | Act of Vengeance | 11/14/1974 | | | USA | 13 | |
| 8 | The Far Side of the Fence | 11/21/1974 | | | USA | 14 | |
| 8 | The Over-the-Hill Blues | 12/05/1974 | | | USA | 11 | |
| 8 | Speak No Evil | 12/12/1974 | | | USA | 16 | |
| 8 | Fall of an Angel | 12/19/1974 | | | USA | 16 | |
| 8 | The Visiting Fireman | 12/26/1974 | | | USA | 15 | |
| 8 | The Return of Eleanor Rogers | 01/02/1975 | | | USA | 13 | |
| 8 | The Faded Image | 01/16/1975 | | | USA | 16 | |