Ever get the feeling that those TV talking heads are caught in an endless loop of mind-assaulting rhetoric? Now you can prove it with the aid of a trusty Arduino and an instantly updating word cloud. Nootropic Design rigged up a homebrew hack that connects your TV tuner's composite feed to a Video Experimenter shield that decodes the closed captioned NTSC broadcast. A Processing sketch then takes over and builds an alphabetized, dynamic metadata cloud you can view on your computer's screen. The program enlarges words according to frequency and omits those shorter than three letters. As you can see in the pic above, commerical time during NBC's Nightly News skews slightly... older. Check out the video after the break for a Big Bang Theory version of this word-building project.