The episode " Remembrances " (Season 4, Episode 8 of The Legend of Korra) is a clip show featuring three distinct flashback segments narrated by Mako, Korra, and Varrick. Due to production budget constraints, this episode uses previously aired footage to tell its story, featuring, among other moments, a conversation between Korra and Asami about the Avatar's impact on the world.
You can find the full transcript for the episode on the Avatar Wiki and explore more episode transcripts in the Avatar Wiki Transcript Category . [S4E8] Remembrances