Turns out, The Big Bang Theory isn't the only nerdy series desperately in need its non-diegetic soundtrack. As you'll see below in this video from Auralnauts, when you strip the Star Wars finale of its iconic John Williams score and sub in ambient noises, it too becomes a terribly awkward scene of people quietly staring at each other--Chewbacca the only celebrated hero brave enough to occasionally shout just to break the insane silence.
If George Lucas really wants to improve the effects on the original trilogy, he should look into this. This effect is really real. Far too real.