|You got my curiousity...|
Will I need a special antenna to receive DTV over-the-air?
In general, dependable reception of over-the-air digital TV programming will require the same type of signal reception equipment that currently works to provide good quality reception of analog TV programming. If you need a roof-top antenna to receive analog TV broadcasts, the same antenna generally will work to receive digital TV broadcasts. You should not have to purchase new antennas that are marketed as “digital ready” or “HD ready.”
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P.S. Used Google to find this answer using the search "difference between analog and digital antenna"