I am sorry, I didn't give more background.
[ It's nothing to do with NUC. My NUC adapter is adaptable to both 2 pins and 3 pins. In fact, they gave at least 6-7 varieties of plugs]
Earlier I had connected my desktop PC to my AOC TV. a couple of times, the HDMI sockets of both TV and motherboard went dead. No display to/from both Mobo and TV. The other HDMI socket of TV which I didn't use worked well. We really didn't know what is the issue then. AOC repaired my TV twice and when the second time it occurred, thankfully AOC gave a full refund and took the TV back. ASUS replaced my motherboard twice. The third time, I was lazy and just bought an HDMI to VGA adapter.
And maybe the fourth or third time, It was with the new LG TV. thankfully this time only the Mobo got hit. TV socket was safe.
HDMI surges are real. at least there are separate HDMI surge protectors on market. Recently shifted from PC to NUC. NUC/PC doesn't matter I guess. This is HTPC for my parents.