Have any of you guys seen the video to Get Lucky?
In the video they actually make a lot of visual referances to Tron itself!
In the scene near the start they are actually in an arcade with an arcade machine with TRON written on it, and after giving it a quick kick they actually get it working and start playing it!
And a couple of times after that there are a few scene where there is a Program (probably one of them) riding through a computor landscape, with some hills being rendered in the horizon infront of them.
I've tried looking for this video online, but I'm having some difficulty finding it-all the ones I can find seem to be edited in some way (or fan-made), even on Youtube.
So the best way to see it is on TV, whenever it's on.