This floated up in a recent eBay visit: “Star Wars Holiday Special 2020 EXTENDED CUT (Blu-ray SPECIAL EDITION 1978)”
https://www.ebay.com/itm/363476765732?hash=item54a0e74c24:g:LcIAAOSwGpJg8YE3
The word “extended” seems to refer to this: “As a special treat a new opening theme was created with an introduction that is exclusive to this release.”
Although it sounds intriguing a) I’m never going to pay for another copy of the Special (made that mistake twice 20+ years ago before I discovered this group and a wonderful online community) and b) I would never want to enrich someone on eBay who’s hawking something that shouldn’t be sold anyway.
My guess is it’s the Rifftrax crawl tacked onto the beginning. Extended cut!