Gotta disagree again. I can't imagine Rangers, A's, Mariners, Cardinals et al fans, the vast majority have seen Strasburg pitch once (his debut) would not want to see him again as opposed to seeing yet another Yankees game (remember they were on last night) against the Twins. And I'm even more confident that other NL East fans (and probably Orioles fans) would rather watch Strasburg, in the hope that he fails.
And he's not just another good pitcher because you see other good pitchers on national television. You never see Strasburg on national television. Again, I'm sure most baseball fans have seen him pitch once, twice at the most and haven't seen him at all in almost two years. That's not true with any other "really good pitcher".
Remember this isn't a game between the Yankees and Red Sox in September. This is a Yankees-Twins game in April! Freddy Garcia vs. Carl Pavano in APRIL or the most hyped prospect ever who you've seen once (or twice).
I consider myself a pretty good baseball fan. I love me a good pitchers duel, but I'm not scheduling my day or life around when Roy Halladay or Justin Verlander or Clayton Kershaw is pitching. Frankly, I don't watch the nationally broadcasted games all that often. Most fans watch their team and that's about it and even then, with a game like baseball, they're not watching every game. There aren't going to be a lot of fans of other teams tuning in to Nats games, even with Strasburg pitching, especially not in April.
Strasburg will get plenty of nationally televised games. You haven't seen any of his games on TV because he was hurt alllast year and we're only 10 days into this season. He and the Nats will get their day, but they're still a team that hasn't finished over .500 to the casual fan, which, unless your team is playing, is who watches ESPN. Strasburg was basically out of sight, out of mind for a whole year and he hadn't really done anything to put himself back in mind yet. He will soon, I'm pretty confident of that, but it doesn't make much sense to expect him and the Nats to be nationally relevant after a nice first week of the season.