Fake but cool video hacking in Times Square

[Video Link] Johnny Foreigner says: "No idea if this is for real – looks like a guy has created a video repeater that "somehow" manages to overwhelm the inputs of any screen in the vicinity. The demo shows the inventor taking over a couple of small screens at ground level, before attaching the device to a huge red balloon and floating it up high to hack bigger screens up above."

It's got to be fake, but I like it! Do you think you could get in trouble for using a tethered balloon in Times Square, though?

(Submitterated by Johnny Foreigner)