According to YouTube user “BITcrash44”, he managed to hack billboard in Times Square by plugging a transmitter into an iPhone 4, playing back a video clip, and then have that footage sent to a video repeater that overrides any screen. Continue reading for the video demonstration.

Starting off small, he exhibits how the device works on various video billboards on the ground and ultimately leads to a big finale. I’m not going to spoil the ending, but will say it involves a balloon and the giant CNN billboard in the middle of Times Square!

[via CBSNews]