Satellite Glossary
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half-inch video
There are two types: VHS and Betamax are home use formats. They have very poor resolution. Betacam and MII are the two major broadcast-quality half-inch video formats. This term is commonly used to describe VHS dubs.
Hertz (Hz)
The number of cycles per second of a sound wave or electromagnetic wave.
high-definition television (HDTV)
A system with very high resolution. In HDTV, more lines per picture frame are transmitted than is standard, resulting in sharper, more vivid images.
Home shopping
TV broadcast of goods for purchase, sent directly to a viewer.