At one point data for every MLB game was available from MLB.com. I started writing a RBI baseball simulator using said data and the graphics from the NES game. But then I realized I'm not that good at programming but I still think it would've been neat to watch game 3 of the 1970 world series as played out by 1985 video game graphics.
The main difference is that it's rendered client side so you can control the camera for yourself. You can watch in real time during the season, the latency is around 30 seconds behind live action.