[Fry7]

Is there anyway to use wake on lan without it keep rebooting or get it to boot up when I switch the tv on. (...)

Yeah, you can activate WoL in the NUC's BIOS and wake it from standby (S3) that way considering you can also activate/configure this inside your Os's nic driver.
But you could also try PulseEight CEC adapter (only tried their external adapater due to problems with the internal one and its pricing) if your tv/receiver support it.

Have tried both and can confirm that it works.