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December 20th in TV History
Deaths
 | William Lundigan | 1975 in Duarte, CA | |
TV Shows Ended
Planet of the Apes (1974)
The Muppet Show (1980)
TV Episode Debuts
| The Phil Silvers Show | "The Reunion" | 1955 |
| Gunsmoke | "Snakebite" | 1958 |
| The Rifleman | "The Silent Knife" | 1960 |
| The Twilight Zone | "Ninety Years Without Slumbering" | 1963 |
| 77 Sunset Strip | "Bonus Baby" | 1963 |
| The Andy Griffith Show | "Girl-Shy" | 1965 |
| The Fugitive | "The Blessings of Liberty" | 1966 |
| Lost in Space | "Castles in Space" | 1967 |
| The Beverly Hillbillies | "Corn Pone Picassos" | 1967 |
| Star Trek | "Elaan of Troyius" | 1968 |
| Adam-12 | "Log 142 -- As High as You Are" | 1969 |
| Cannon | "Nobody Beats the House" | 1972 |
| Adam-12 | "Gifts and Long Letters" | 1972 |
| The Rockford Files | "Profit and Loss (1)" | 1974 |
| The Six Million Dollar Man | "The Peeping Blonde" | 1974 |
| The Mary Tyler Moore Show | "What Do You Want to Do When You Produce?" | 1975 |
| Three's Company | "Three's Christmas" | 1977 |
| Charlie's Angels | "Angels in the Stretch" | 1978 |
| Dallas | "Return Engagement" | 1979 |
| Three's Company | "The Charming Stranger" | 1983 |
| Cheers | "A Ditch in Time" | 1984 |
| The Cosby Show | "Father's Day" | 1984 |
| Dallas | "Curiosity Killed the Cat" | 1985 |
| Family Ties | "Miracle in Columbus" | 1987 |
| Moonlighting | "The Color of Maddie" | 1988 |
| Night Court | "Passion Plundered" | 1989 |
