[citation][nom]lp231[/nom]So if CC is enabled, you won't hear the words that's filtered, but you are still going to read it?[/citation]
"...he hacked his TV signal and decoded the closed-captioning transmission track."
He didn't enabled the CC at all, prior to the signal reaching the TV the little aparatus decodes the signal's CC "track", when certain words appear it send a signal to the remote controler whitch actives the mute.
[citation][nom]back_by_demand[/nom]Does this only work for the channel you are on or could it work for the raw feed of all the channels you subscribe to?If so you could turn it round and have it look for certain keywords of interest and change channels when it arrives.[/citation]
Back when I had my all-in-wonder pro card, it had software that would do exactly that. You put in some keywords and it would flip to those stations when they came up.