Topic edited, because I have found most of the resources I needed.

I’m working to improve the multi-part episodes of Avatar The Last Airbender. I don’t particularly like how the transitions between their parts were handled, as well as the fact that the “Previously on Avatar” segments were not included on the Blu-ray releases (with the exception being in “The Boiling Rock”).

What I need now is the “Previously on Avatar” segment from the long combined version of the finale - Sozin’s Comet.
This clip is not included in the Blu-ray release, but it is included on streaming services, such as Amazon Prime or Google Play Movies. So I have purchased this episode on both Amazon and Google Play, but I wasn’t able to get a good quality screen recording of it.

Any help would be apreciated.