Cable outage on 6/3--BAD pixelation on TV channels persisting since

On 6/3 we had a complete service outage of all Xfinity services for several hours for an alleged "upgrade". Saw folks running around neighborhood working on the little kiosks and things all day, but no noticeable gain of function, or communication from xfinity before or after the event as to what to expect or why.
But anyway--TV has been worse on every cable channel I've checked. Streaming, interestingly has been fine. Had been too busy to watch anything on cable--just a couple of streaming shows--until Saturday night when I sat down to watch Game 5 of the NBA Finals. Got *horrible* pixilation and audio distortion and skipping. Looked again yesterday and again tonight, checking the other TVs and boxes in the house--same problems. 

Yes I HAVE checked all our connections--no mice or squirrels building nests or anything. Sorry--I'm blaming YOU GUYS for real this time, and I'm really wondering why I keep paying so much $$$ to you each month for services I'm not benefitting from.