How do I get my HDTV to display the same as the left side of the 1080p full-motion demo on the whole screen?

My new HDTV (pn50b860) has a feature called 1080p full-motion demo where it shows half of the screen normally and the other half of the screen shows movement absolutely crystal clear. I hope to see this all the time but understand if it is limited to a game or blu ray player.
Thanks for the help!

VideoSecu Plasma TV Flat Panel Ceiling Mount LCD Monitor Drop Bracket for most Samsung 23″ to 40″ LCD TV and Display 1lp

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PLASMA PANELS: Sony Has Plasma HDTV Display.: An article from: Display Development News

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This digital document is an article from Display Development News, published by Business Communications Company, Inc. on November 1, 1999. The length of the article is 342 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

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Sylvania LD370SC8 37″ LCD HDTV DVD Combo Display

Product Description
And with its integrated DVD player and PC input, it offers the ultimate in convenience. It provides audio enthusiasts the ultimate experience with its high-quality sound…. More >>