Interactive Television Glossary

There are many useful interactive television glossaries on the internet. Try the following:

ADSL (asymmetrical digital subscriber line)

A version of DSL. Called asymmetric because it carries a faster connection towards the customer (downstream) than towards the exchange (upstream). See also DSL.


In television terms, a method of storing or transmitting information, such as video pictures, in the form of variable waves. Typically used in traditional television broadcasts over the air or through cable.

Announcement Stream

Part of the broadcast architecture that helps to synchronise ...

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