Given how many threads there have already been about this topic, I think we've exhausted all possible explanations.
I see nothing "hard to watch" about a host with a glass of wine, in pajamas or otherwise clothed.
Credit given, however, that the OP managed to use a generic title for this thread. It made me think it might be a new issue and that's the only reason I opened it. Silly me.
"" A little learning is a dangerous thing."-Alexander Pope