I might be a little burned out w/ TNG due to rewatching seasons 1, 2, and now 3 in fairly short order. So, I haven't been too eager to get through season 3, and am taking my time. I've just gotten to the 2nd disc and watched Booby Trap.
However, I did skip ahead to watch Transfigurations a few weeks ago. It's interesting to contrast it visually to the early episodes of the season. They were shot much more cinematically, w/ more careful lighting, contrasting w/ deeper shadows. Transfigurations, by comparison, was lit much more even and bright, giving it a washed-out, flatter look. I think by the end of the season, they were burned out and/or had less time. Thus, the lighting setups suffered.