After watching last night I said his appearance had done nothing to quash the rumours about him having been ill. Hat pulled right down, sunglasses on, so we couldnt see his head or his eye brows. And sitting down, that is just not the Peter Kay we know. Also the clips they showed right at the start of the video were, I am pretty sure, not him either. I thought they were going to recreate the video with him in, not show the old one. If he was well and wanted to support the cause he would have redone it with the public in the background.
Sadly I do think all the rumours are true and he has been very poorly. I do wish him well and hope he has now turned a corner.