Recently upgraded to Bluecurve from Gateway. I’m having issues particularly with sports shows.  Picture goes from clear HD to fuzzy standard def for up to 30 seconds at a time.  It’s not pixilating just fuzzy.  Happens very frequently.  Shaw has checked the signal strength multiple times and it is great.  Anyone else have this problem?  I have three TV's and this happens on all of them.  One set even is connected via ethernet cable.  This is driving me nuts.

I have a senior technician coming out but I have my doubts if this can fixed.  The boxes and modem have been reset multiple times already.  Some hardware outside the house was also recently replaced by a previous tech.