NBCSN is absolutely unwatchable. All live programming is pixilated and broken up. How does the premier sports channel owned by Comcast have such poor reception. As a Hockey and Motorsports fan, I am about to change providers.
Did all that and it is specific to one channel, and I am not the only one who has noticed. This is an NBCSN problem. The same series of games when broacast on other NBC channels are fine.