Whether you call them extraterrestrials or Martians, TV shows about aliens are always entertaining. The best TV shows about aliens feature otherworldly beings learning all they can about life on Earth - or possibly invading. This is a list of the greatest alien TV shows including everything from Futurama to Doctor Who to Battlestar Galactica.
What programs will you find on this list of top TV shows about aliens? The popular sitcom 3rd Rock from the Sun centered around four extraterrestrials who were sent to Earth to observe human behavior. John Lithgow, Kristen Johnston, French Stewart, and Joseph Gordon-Levitt starred in the hit NBC series. ALF is another good TV show about an alien living on Earth, this time in puppet form. The X-Files followed FBI Agents Mulder and Scully as they investigated supernatural occurrences and debated the existence of extraterrestrial life. Other good shows about aliens featured here include Smallville, Star Trek: Voyager, and Invader Zim.Which show about aliens is the best? Give your favorites series a thumbs up to move them to the top of the list, and add any great shows that are missing.