There have been a lots of strange aliens throughout TV history. Shows like Star Trek, My Favorite Martian, V, and Battlestar Galactica are full of them but, none have been crazier than the aliens of 3rd Rock from the Sun!
In the popular sitcom, four extra-terrestrials materialize in an Ohio college town and take human form as the Solomons — Dick (John Lithgow), Sally (Kristen Johnston), Tommy (Joseph Gordon-Levitt), and Harry (French Stewart). They look like a typical family but are completely clueless about our ways of doing things.
The popular sitcom ran for six seasons and 139 episodes on NBC. The final episode of 3rd Rock aired in May 2001 as the crazy aliens finally completed their mission on Earth.