Once of John Lithgow's best endeavors, 3rd Rock from the Sun is a wacky sitcom of a TV show. How would you like to have an Alien for a principal? Sounds like something you would read about in a chapter book for grade school kids, but this show is anything but kid friendly. At times, it's downright rude and abrasive, but that's why it's so fun to watch. If aliens were smart enough to come to our world, you would think that learning human customs would take less than six seasons--but then we wouldn't have a show, would we? Enjoyable, though rewatchablity is limited to a few runs before it gets old, 3rd Rock is a blast, the best comedic venture on TV since Mork and Mindy.