Happening now (again) during the broadcast, PST. Quite irritating. It's happened recently in the past on this and other channels.
@DXER -- this could be an issue with "signal-strength" reaching your Shaw PVR.
Contact Shaw (www.shaw.ca/chat) or 1-888-472-2222 to get the Shaw Agent to remotely connect to your box, and to view the signal-strength, and other values, and to do other trouble-shooting. Make them "earn" the money you pay them every month. 🙂