Right now only about 20% of Americans are capable of receiving a digital signal through a digital tuner built into the television set itself, according to the Consumer Electronics Association.

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This desktop comes with a built-in television tuner, stereo speakers, a digital video recorder, Blu-ray burner and a DVD player--all its innards built behind a sleek high-definition, flat-panel screen.

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If you rely on a TV antenna to receive television broadcast and are shopping for a new TV, you should check whether that TV has a digital tuner.

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