That's actually creepy as fuck. Inb4itsjustsomeoneoitsidewithanattremote. Seems like it'd be easy to find someone close enough to know what's going on and typing on your TV. Haha
Since the person knew the news team was there, therefore was close to the home, I would imagine this isn't 'hacking'.
He probably tampered with his remote or something similar (Like Poop said).
/botnetillegal