Where were you 50 years ago? If you were watching television in 1975, then you witnessed the arrival of some of TV's biggest hits as a wide variety of shows made their debut. And it's really quite a ...

MARTIN: OK. Well, it first went on the air on this day back in 1975. (SOUNDBITE OF ARCHIVED RECORDING) UNIDENTIFIED NARRATOR: Players spin the Wheel of Fortune for fabulous prizes. MARTÍNEZ ...