Another worry, according to Robin Harris, an analyst with the Data Mobility Group, is that Blu-Ray adoption will be slow because few people will notice the difference between formats, since many players can neatly "up-convert" DVDs for high-definition sets.

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On its own, Ultra HD isn't a compelling reason to upgrade unless you are a video buff, especially since you would have to sit extra close to the set or have an enormous TV to notice the difference between 4K and a lower-resolution screen.

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While the receiver could not notice a difference between the three connections, I would say that the caller connecting to a router would still be the most preferable option, as it had noticeably less static.

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In the press conference that followed his introduction to Real's fans, he predicted he would notice a difference between playing styles in the two countries.

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Second, we believe the weight difference between the iPhone 5 and the 4S is meaningful and consumers will notice the difference in their pocket, despite the larger screen size.

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