pixelation

Well so it's been happening for some time and for me mostly on live broadcasts. A tech came and installed new cables outside.  It still happens.  Xfinity recently sent out a message to everyone in this area and said they will be working on upgrading ...well they really didn't say what exactly but never fear, it will be good for all they say.  I'm seriously considering ending my use of their service.  They haven't demonstrated that they can resolve this issue and after their upgrading work ends I will reevaluate and make a decision.