Delay Raspberry 4 boot process

Hi,

When looking through some forums I encountered a problem with the HDMI connection between the Raspberry PI 4
and a connected TV.

Background: I switch TV and Raspberry via a single switch socket
at the same time.

After that, it may be necessary to turn on the TV in front of the Raspberry to watch the Raspberry boot
the possibility to recognize and use the HDMI interface of the TV. Otherwise the television will remain black.

Ask:
Is there a way with LibreELEC to stop the boot process for a few seconds (30 sec? Config file?) And only then with the Connect TV via HDMI,
if it is switched on and ready for operation?
And if so, how should I proceed?

Greetings Schorsch

Quote from Da Flex

The solution is easier. .....

Thanks for the hint. For the time being, however, I will still only switch on the Raspberry manually when the TV is on - I got used to it after a few days and it is not as annoying as I initially thought.