TV Channels Growing

The New York Times writes about TV multicasting:

Multicasting, by the way, is the entertainment industry term for broadcasting several television channels in the space, or bandwidth, of a current analog broadcast signal.

There are technical issues related to this, but the upshot is that with new digital frequencies and equipment, a local station can now beam roughly four digital channels on its signal where a single analog channel once existed. Or it can broadcast the current signal and sublet the extra spectrum, or space, for other purposes, like Internet access, infomercials or pay-TV services.

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Rajesh Jain

An Entrepreneur based in Mumbai, India.