Digital TV Glossary - C

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Digital TV terms defined on this page:
For a full glossary list click here

• Common interface
• Communal system
• Conditional access
• Coverage
• CRT

Television or set-top box which allows connection to another device using the same open standard.
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Communal system

Where the signal is distributed through a communal building such as a block of flats, sharing the same aerial.
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A way of blocking access to programmes so that they can only be viewed by entering the correct code. Used in paid-for on-demand services to avoid accidental purchases or as a parental control.
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Areas that can receive digital terrestrial TV, or a particular provider’s service.
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Cathode Ray Tube. The standard type of large-bodied television set, not a flat panel design.
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