off-air
US /ˌɔfˈer/
UK /ˌɔfˈer/

1.
not currently broadcasting or being broadcast
:
•
The radio station went off-air for maintenance.
•
We'll discuss this more when we're off-air.
1.
not currently broadcasting or being broadcast
:
•
The host spoke freely once they were off-air.
•
The cameras were turned off-air during the break.