Just for an additional clarification: In spite of the hype from a lot of sales folk, antennas don't care whether your signal is analog or digital. They are cut according to the wavelength (or frequency) of the signal, and the new digital signals are in the same area of the electromagnetic spectrum as the old analog signals (that is, they use the same channels), so will receive the signals just fine. As indicated in the posts above, the electronics is where the difference is, so converter boxes or TVs with an ATSC (as opposed to NTSC) tuner will receive the digital signal. NTSC, of course, is for the existing analog signals.
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