On the leading edge of a new wave of 4K TVs boasting HDR capabilities, Sony’s 55-inch Bravia X930D demonstrates the startling possibilities of the new video format — as well as the potential for confusion among shoppers.

HDR stands for high dynamic range, the ability of a TV to display more colors, better contrast ratios and higher brightness levels compared to standard HD and 4K ultra HD sets. The Sony Bravia X930D uses quantum dot technology to produce what the company claims is a 30 percent wider color gamut. So the TV commands a premium price, around $2,000, for supporting the new format. However, with a paucity of HDR content currently available, you may want to wait before buying this or any HDR set.
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