FILE - This undated publicity image provided by Sony shows an ultra-HD 4K TV set. At the biggest trade show in the Americas, which kicks off next week in Las Vegas, TV makers will be

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FILE - This undated publicity image provided by Sony shows an ultra-HD 4K TV set. At the biggest trade show in the Americas, which kicks off next week in Las Vegas, TV makers will be doing their best to convince you that HDTVs are old hat, and should make room for "Ultra HDTV." (AP Photo/Sony, File) less