Really given the episodes, 1/2 the show seems to be about body switching... At least that is what you would think. Hmm I am an overweight out of shape nerd, but now I get to go out and party with a hot body and pick up chicks... Hmm if I make love with my wife using this body will she fall in love with the real owner of the body and develop a love triangle... Hmm will my lesbian spouse accept me in this less attractive body, or does she love me for the inner me... How do I manage to tell the ones I love I am alive but am in this other body but they cannot know so I will pretend to be a good friend...
I am surprise they have not done the whole gender change, they seem to have conveniently avoided that so far, but perhaps they will explore what happens with the lesbian couple if she comes back as a he for the night...
Why are they even in space? Don't these magic rocks work closer to home? Could they not just make a whole series like this... Oh wait they did... Quantum Leap...