A hilarious cast can take a sitcom to new heights, and some ensemble casts reign supreme as the funniest of all time.

The '70s was filled with iconic and groundbreaking TV shows, but these 10 stand as the definitive series of the decade.

We may receive a commission on purchases made from links. When it came to television in the 1970s, the times were a-changing — and not a moment too soon. During the decade, the television industry saw ...