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April 23rd in TV History
Birthdays
 | Marcel Hillaire | 1908 in Cologne, Germany | - Lost In Space, The Twilight Zone, Adventures in Paradise |
 | Lee Majors | 1939 in Wyandotte, MI | - The Six Million Dollar Man, The Fall Guy, The Big Valley |
Deaths
| William Hartnell | 1975 in Marden, Kent, England, UK | - Doctor Who (the first doctor) |
TV Show Debuts
Leave It To Beaver (1957)
The Muppet Show (1977)
TV Episode Debuts
| The Adventures of Ozzie and Harriet | "An Evening with Hamlet" | 1954 |
| I Love Lucy | "Lucy's Bicycle Trip" | 1956 |
| The Phil Silvers Show | "Radio Station B.I.L.K.O." | 1957 |
| The Adventures of Ozzie and Harriet | "Code of Honor" | 1958 |
| Gunsmoke | "The Lady Killer" | 1960 |
| The Rifleman | "Milly's Brother" | 1962 |
| The Andy Griffith Show | "Andy on Trial" | 1962 |
| The Addams Family (1964) | "Progress and the Addams Family" | 1965 |
| 12 O'Clock High | "P.O.W.: Part One" | 1965 |
| Get Smart (1965) | "Shipment to Beirut" | 1966 |
| I Dream of Jeannie | "My Master the Magician" | 1966 |
| The Adventures of Ozzie and Harriet | "Helpful June" | 1966 |
| Gunsmoke | "My Father, My Son" | 1966 |
| Doctor Who | "The Final Test (The Celestial Toymaker, Part Four)" | 1966 |
| The Avengers | "Take-Over" | 1969 |
| Happy Days | "The Best Man" | 1974 |
| Dallas | "Winds of Vengeance" | 1978 |
| Moonlighting | "In 'N Outlaws" | 1989 |
| Family Ties | "Wrap Around the Clock (1)" | 1989 |
| Family Ties | "Wrap Around the Clock (2)" | 1989 |
| Cheers | "Rebecca's Lover... Not" | 1992 |
| The Cosby Show | "Some Gifts Aren't Deductible" | 1992 |
| L.A. Law | "Love in Bloom" | 1992 |
| 3rd Rock From the Sun | "Dick Like Me" | 1996 |
