You might be able to pick up over the air high def broadcasts while you are waiting for cable. If your HDTV has a built in tuner all you need is a UHF antenna. If your HDTV is "HD-ready" - meaning it lacks a tuner - then you will need to get an external HD tuner. To check for over the air HD broadcast channels you can do a search at antennaweb.org . Just type in your zip code and it will tell you what channels are available over the air. Digital (HD) channels will end with "DT", as in "WUSA-DT" I looked and it appears that you can enjoy available HD programming on pbs, cbs, fox, nbc, and abc. With over the air digital broadcasts you will either get the signal or you won't. So, start out with an inexpensive UHF antenna and play around with placement. If you aren't getting the signals you might want to try a better antenna. People who are very far away from the broadcast towers (or they have structures in the way) might have to put an antenna on the roof. The advantage of over the air HD broadcasts is that it is free. The disadvantage is that the signal can be broken up by the elements, the position of your antenna might have to be moved relative to each channel's broadcast tower, and only the major networks and PBS broadcast for free over the air.The first advantage of getting HD through cable is that you can often get the external tuner (if necessary) for free or for a small monthly charge in addition to your existing cable plan. However, the main advantage of getting HD through cable is the larger selection of HD programming, including the major networks, PBS, ESPN, the movie channels, Discovery, etc...marxtacy
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