#high-definition_television_transition

High-definition television transition

Switchover to HD television or switch-off of SD signals

The transition to high-definition television is a process by which standard-definition (SD) television signals are upgraded to a high-definition (HD) format. In this process, channels usually either simulcast their HD signals alongside the existing SD signals or broadcast exclusively in HD. The transition to the latter is often called the standard-definition television switch-off.

Sun 8th

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