We've all had the experience of looking back at a movie or TV show that rocked our worlds a few decades ago, and going, "Oh." Suddenly, the awesome classic of the 1970s or 1980s looks kind of cheesy and silly. The robot pets, the speechifying, the Klingons in cowboy hats. You expect the special effects not to be that special or effective, but you're not prepared for the dialog or the acting. Which "classic" scifi show deserves to be kicked out of the canon?