A young Courteney Cox in her underwear in an episode of Dream On
Season 3, episode 10. 1992
Wow. 25 years ago.
If you're interested, I actually watched every episode of Dream On and catalogued the nudity. Unfortunately, they stopped issuing it on home media after season two, for reasons I'm not privy to, so we only have DVD film clips from the first 28 episodes, and we have no Blu-Ray clips at all.