In my college days a group of us gathered daily in the basement to watch TV. The regimen was set and unbreakable: General Hospital, M*A*S*H, The Rockford Files. Class schedules dictated who occupied the couches, but the show tuned in on the big screen never deviated.
If you were late to the basement and the Rockford Files had already begun, you might as well consider the afternoon wasted and go study. The answering machine message at the beginning always was always one of the best moments of an awesome show.
Here is a sampling:
If you had to be a 1970's private eye, you know you would be Rockford. Mannix was a pussy and Buddy Ebson's Barnaby Jones was never believable. We all knew he was really a Hillbilly. Columbo and Kojak were just cliche's. I will admit that McMillan had a hot wife.
It occurs to me there were sure a lot of mysteries to be solved in the 1970's.