For me it's the quality of the feed that determines the resolution via my Mac to also my PC monitor 1152x870 75hz resolution, not the broadcast network.
Note that my PC monitor is three years old, so it is possible that your picture will be even better.
Last season I would get as close to HD as one can on that same monitor but would get with the actual TSN feed, not the NFL Network, and all those commercials like for RONA and Tim Horton's.
This year I am running into more the ESPN3 feeds, and so the quality is not as good and those commercials are so annoying. Have you seen the Red Stag ad enough for example? :roll:
One major and obnoxious Bombers fan re-streams one of the ESPN3 feeds, and I'm thankful for that, but I think he's probably drinking a lot as the game wears on because he gets worse.
There is one feed via ESPN3 that is giving me a near-HD picture though, but it was not around this past weekend.
I'll seek out that feed again next time around and post the link too.
It's so ridiculous that not every cable company has ESPN3 too down here and here we are going the extra mile as they show nothing but baseball highlights, baseball, poker, and other crap as we watch real football.
It's even more ridiculous too that ESPN just does not stream straight the TSN feed for ads too, but ESPN 3 does have some big names in its ads like Lexus and the US Navy.