Depending on where you first watched the series (especially for Western fans who grew up on the YTV or Toonami eras), you might have never seen Episode 51. Originally released as an OVA on the final DVD volume and later integrated into the Special Edition HD Remaster

Had 50 episodes. If a site lists 51, they are usually counting the "After-Phase" epilogue as the final episode. HD Remaster (2011): This version is actually shorter, consisting of only 48 episodes What was removed?

: The definitive conclusion to the main cast's journey, addressing the "Destiny Plan" and the final romantic resolutions for Kira and Lacus.