Weegee, you beat me to it.
My best of the 70s: Star Wars, Kolchak: The Night Stalker, Burger Chef restaurants, and punk rock.
My worst of the 70s: ABBA, Fantasy Island, bell bottoms and puka shell necklaces, mood rings, leftover wannabe hippies.
Burger Chef... they had the funkiest tasting mustard! I can still remember it, and it's been more than 35 years since I ate at one!