When was the last time any of us saw and heard the old THX “The Audience Is Listening” “Deep Note” fanfare in a theatre before the feature? No specific recall here, but we do remember the awesome factor of the brief pre-show demonstration of the high standards of THX-level sound and projection. After 30 years THX has updated its original audio-visual, which you can watch above. For comparison you can watch and listen to the original version below. You can also see new, old and other versions on THX’s website.