I get major pixel issues in the evenings. It will begin around 5pm and gradually get worse until the screen goes black with a "one moment please" message. Everything will be fine again around 9am. It only happens on the broadcast channels (CW, CBS, NBC, etc.). I have had two tech visits. The first changed the box and the end of all cables in the house -- no effect. The second made changes to all connections outside the house -- no effect. I do not know which of my neighbors have comcast service, of I would go around asking if anyone else is having trouble. It looks as if I will not be able to watch this year's Superbowl.
Browsing through forums, if seems that the primary fix for a problem like this is to have a 'line crew' come out. How does one get that done? Are there any other suggestions? Thank you.