Your question is leading though. "Watching" heavily implies television. Being at the stadium involves much more than merely watching the game. I don't know of anyone who uses the verb watch in reference to actually going to an event.
That is where you and I disagree. I don't think the verb "watch" has any such inherent implication. Our society has given that meaning to the word in very recent times. Rather than dismiss my point, I think the modification of the meaning has proven it.
It may not be a modification. Did people even say "watch a baseball game" before television? Surely no one said "listen to a baseball game" before radio. What you've demonstrated is that "watch" in some contexts implies watching on a television. That's not the same as demonstrating the "addictive, yet passive" nature of television. It does demonstrate its pervasiveness, though.
