Worse, there was just an hour to go before transmission.

In this technique, one or more of the signals are delayed before transmission.

This episode was shown to a preview audience before transmission.

The weekend before transmission the film was pulled due to a rights issue and has not been screened.

Cold feet amongst the production team caused it to be dropped before transmission.

The tape "arrived just a few minutes before transmission".

However, five hours before transmission they were told to stand down.

Before transmission, these patterns are replaced with symbols or codes.

The radiated light could even be slowed or captured before transmission.

Originally, the show had a half-hour pilot made a year before transmission that was never aired.