As I said, I have not done a complete examination of the UK PAL versions of TESB and ROTJ, but the ANH UK PAL GOUT is not missing a single frame at the reel changes that is included in any other version nor is it missing any other frames. It matches the DE LD frame for frame and the DVD and Blu-ray at all the reel changes and in all the non SE sections. The US GOUT is not far off, but it is missing that one frame.
PAL GOUT (including UK) is missing a frame compared to NTSC GOUT in ROTJ (Ewoks jump a log reel change), but there’s the whole thread linked above talking about frames missing from both, which I can’t verify, but seems pretty exhaustive.
Again, missing is a misnomer IMO. A frame can’t be missing if it was never seen in any theatre in the first place. But some home releases contain more extra/bonus frames than others 😉