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How Home Theater and HDTV Work by Michael Troller, Michael Miller

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Chapter 1. How Broadcast Television Works

How Broadcast Television Works

For years we’ve received our television programming over the air, broadcast from a local television station and received by a set-top or roof-top antenna attached to the living room TV set. While there are now plenty of other ways to receive audio/video programming—via cable, satellite, and DVD—many Americans still receive over-the-air (OTA) broadcasts, and the OTA broadcast system is the basis of all the other transmission systems that have developed since then.

There are several technological principles on which OTA television broadcasts are based. First of these is the science of perception. What we perceive ...

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