Transmission will always be “live” when sent. It will be delayed by the time it is received by the transmission time which is the distance divided by the speed of light. (in the same units)
Note that on the news when the story is from somewhere else on the planet, there is often a delay before the “live” transmission starts, this is cause by the transmission delay which via a satellite is about .2 sec.
Agree with KC.
Thnx