One thing about the LG we used to have - the HDMI sockets where soldered onto the main board by the pins - there was absolutely no strain lugs or other mechanism to protect the connections to the main board. Admittedly, that TV got moved a lot, and over time the strain from the HDMI cables "popped" the HDMI ports off the main board - and subsequently were not working.
Given that one would expect the HDMI ports to be plugged in and out and have a small amount of strain put on them - this experience has really soured my LG experience. (That and their earlier android phones ...)
I don't know if other companies are any better, but I do know that our Samsung TV has fared a lot better with respect to the HDMI ports - whether they have strain lugs etc., I do not know (haven't opened the TV up to check).
We are going to go for a new TV at some point (4K and physically bigger) - so have been following this thread. Can anybody shed some light has to whether the 55"+ TVs have the ports connected in such a way to protect against general physical strain?