Many of the old TV shows I would watch as a kid were shown late at night. During the summer I would stay up until 0200, when the TV channels went off the air. Hated when the TV showed the symbol and started that noise.
I would sometimes watch Carson, The Tomorrow Show, and it seems like maybe there was another late night talk show...
Mostly, I would watch,
- Hogans Heros
- Phil Silver Show
- Wild, Wild, West
- Whats My Line(The B&W version)
- You Bet Your Life(Groucho Marx)
- Dave Allen(Irish Comedian)
- The Honey Mooners
- Dick Van Dyke Show
- I Love Lucy
I know there were some other shows, and they are on the tip of my tongue......
Twilight Zone and Outer Limits I would see from time to time and I remember one episode scaring the heck out of me and a friend.
Lately, we have been watching Barney Miller, though it seems to have been take off the rotation.

It is another TV show that now provides History lessons as the talk about crime in NYC, budget crises in NYC, inflation, gas prices, Flu(And the controversy over shots), the Space Shuttle, etc.... The Carson Tonight Show is the same way history wise.