Description: The show would begin with two men and two women, who were sent out on two B/G dates where each couple would spend time with each other and then switch to spend time with the other man/woman (the show never did any episodes with entirely same-sex contestants, though a few episodes did show two men or two women abandoning their hetero original date and hooking up with each other). Then a 5th man or woman (hence, "the fifth wheel") would join the group, usually as a more outgoing/sensual counterpoint to the initial 4 contestants.
