Seeing a hi-def picture for the first time can be pretty intense, even mesmerizing. The trance-like state that results is known as The Hi-Def High. And getting HD from Comcast is crucial to maintaining that high. All of which is explained and demonstrated in great detail by various HD cliché characters, including colourful balloons, beautiful butterflies, and a vivid, smart-alecky parrot who acts as host.