I agree in most part to the arguments made here. As in it's more down to the person than where you've seen it, though you have a better chance of following certain players watching them at SJP than on TV. It would also depend on where you're sitting, but in general a smart person should be able to form better opinion about the players performance watching at SJP than on TV. Though I do think that you get a better opinion about the game as a whole watching on TV seeing how you get to see replays over and over about critical incidents and so on. You really can't have a valid opinion regarding anything game wise if you listen on the radio though. Now in the Championship and us not being on TV every week, I think the ones at SJP have a better ground to base their opinion on than the others. In the PL I think it's more 50/50 though, as in being there is better in certain elements for forming an opinion, and watching on TV is better in certain elements for forming an opinion.
What I don't like is how this seems to head down the "foreigners out, lolzx" thread path which occasionally appear on here, and Ronaldo's point regarding it is just silly seeing how most foreigners spend more than a grand over the course of a season to see Newcastle at SJP only once or twice a season, if they'd had the chance to go to the stadium each match, they would.