We need to try to narrow down the issue. I suggest you change manually the video input of the TV before turning the TV on.
If problem continues please provide me with your NUC configuration, I mean model and quantity of RAM, model of the M.2 SSD.
Do you have blinking blue lights on the NUC during post process?
Thank you for your reply.
Today, I replaced SO-DIMM modules, so monitor shows Intel NUC Logo!
probably, memory module was corrupted.