Ah, Felicity. The New Adult heroine before New Adult was a thing. Remember Scott Speedman before he was a lycan-vampire hybrid? And Janeane Garofalo being the older, widowed pen pal that Felicity confided in via tape recorded messages. It was such a good show.
British fans of Back to the Future didn't know how Marty McFly got his start, so I'm here to tell you: He was Alex P. Keaton, on Family Ties - a young Republican of former hippy parents from Ohio. He was so arrogant and smart and charming that you couldn't help but like him. Originally the part was offered to Ferris Bueller's Matthew Broderick, who turned it down. I'm glad he did, because Micheal J. Fox was perfect for the role.
80s TV show honorable mention: Fraggle Rock and The Flintstones