Naruto episode 193: Viva Dojo Challenge! Youth is all about Passion!
Chan Lee appeared in episode 32. Joe Brown appeared in episode 14.
5th episode
Episode 220, I believe. ^^
Gaara tries to kill Rock Lee in episode 50 at the end of their fight. Gaara also goes to the hospital to try to kill him in episode 58.
It was episode 196-Hot-Blooded Confrontation: Student vs. Sensei!
Episode 193 Viva Dojo Challenge! Youth Is All About Passion!
lee was never and hasn't ever been fat, but there was an episode where two imposters come to the hidden leaf in the form of lee and guy, and in that episode the lee imposter was fat and that episode was 161 the apperence of strange visitors.
Chan Lee appeared in episode 32. Joe Brown appeared in episode 14.
Rock Lee goes into surgery in a flashback in episode 123.
Lynch did it in episode 25 of season 1 lee finds out lynch did it. The next episode he admit it.
5th episode
In the episode Bad Little Boy (Season 5, Episode 11), Marshall Lee fakes his own death.
There isn't enough information to determine who Lee Paulsen is. It's possible that Lee Paulsen could be a private individual or a public figure with limited online presence.
Episode 220, I believe. ^^
dojo
Technically there was no episode where he learned it, but there is a flashback in episode 31
Gaara saves Lee from Kimimaru in episode 129.