Yes very true in regards to LG displays, I can edit my thread and mention for Epson 4k projector but was thinking of keeping it simple for now. I think there is one TCL TV owner.
It does sound like the same issue, my picture can sometimes come back or even after 5 minutes or not at all.
Maybe keep an eye on my new thread here
If there is more wide spread hdmi signal drop bug (which perhaps its looking like) then CE team or other users can figure it out going forward, and with luck it works across all platforms.