Severe screen pixelation and distorted audio in DVR & live TV

We experienced a combination of the two on HBO. I'm unable to recall the exact channels involved, as HBO had been running marathons of both Game of Thrones and the Harry Potter movies on two of their channels.

I might also add that we here in Baton Rouge have had unseasonably cold weather (as in below freezing at night) for the last few evenings with the forecast of more.

Could this inclement climate be a contributing factor to the difficulties in Contour's audio and video? Should the situation continue, what other information would you need to diagnose and hopefully remedy this hopefully temporary condition?