Yes there is. I can control my HD television with my blackberry, both of which are interconnected on my wireless network. At home I can ‘beam’ pictures from my cell to the TV...
So if I just happen to have some funny anti-obama pictures on my phone... and the restaurant TV is on an open network (vs. wired)... this could get interesting.
Try it in a sports bar with 1 minute left in the game and the team with the ball is trying to score the winning goal.......................