Three's Company is one of the few shows out there that always had the same plot but it always worked. No matter what happens there's always a big misunderstanding and everything gets screwed up, but in the end everything works out.
What made the show work was it's excellent cast. Each and every character played a unique role that added to the mess which they have gotten themselves into. Jack, Janet, Chrissy, or Terri and Cindy always got themselves into something, and then the Ropers, Furley, Larry, or Lana always managed to make things worse by trying to make things better.
Three's Company was a ridiculous show with great underlying humor. This show is a true classic. One of the best sitcoms to ever air on television.
