With the possible exception of E.T., Alf was the most docile alien of the 1980s. Sure, he was always threatening to eat the family cat, but he never actually went through with it. The show began when his spaceship crashed into the garage of the Tanner family – a pretty lucky break because they instantly took him in and treated him like one of their own, resisting the Alien Task Force's attempts to take him away. It's an incredibly goofy show, but it's aged a little better than you might think. Plus the dad looks and sounds so much like Joe Lieberman that it's almost eerie.