Scott and Steven take a long hard look at two of the most beloved time travel comedies of the 1980s (or ever). And while both films are still considered "most excellent" today for their genuine warmth and lovable characters, they also boast surprisingly intelligent screenplays, full of interesting science questions, including:   Could a giant amplifier actually blow you out of your sneakers? Which is the more practical time machine: a bizarro sports car or a soon-to-be obsolete phone booth? Was Abraham Lincoln really a time traveler? And when did they stop selling pudding in metal cans? Party on, with this century-spanning episode of Science vs Fiction.