I actually have this on tape, I found it the other day, the commercial where the kid goes inside the game. It's not very long but it's pretty damn cool.
I bought these vhs tapes from Ebay one year, I forget what they're called...... "Game Strategies" or "Game Players," something along those lines. They have commercials in between the game footage, and it's there.
That game looks different, 'cause they briefly show the screen where you select pitchers, but there's 5 of them instead of 4.
No video? Put it up on youtube...
http://www.youtube.com/watch?v=ET8oj-Dv8wY
it's posted on youtube by about four different people as far as i can tell.