Any TV is an electronic device that has vents in the back or side to allow heat to escape. Although the newer TV's have little heat there is still enough to have to vent. Therefore the vents will allow humidity inside if left out on a lanai. I would recommend that when not using the TV putting a cover over it that may be removed when watching. Since your Lanai is covered I assume rain is not an issue however remember we get thunderstorms (and hurricanes) here which create wind and rain which may go horizontal.

TV works okay outside as long as it is close to the inner wall unless your lanai is enclosed then it doesn't matter.

Any TV will work outside, but unless your lanai is air conditioned, the TV will not last long. The humidity will kill it.

Why must it be either/or? Is it too much to ask for a neighbor in a nearby lanai not play I Love Lucy at 11pm, or not smoke smelly cigars, or not have a barking dog??

We can always play the “it could be worse” game. Just like I won’t put up wind chimes or a water feature because I don’t want to impose on my neighbors - I would hope they would do the same for me. It's about respect for others.

Not even close to being true.

Ours is 6 years and going strong.

I live on a preserve, have a covered open lanai (solid structure and birdcage), and have had a tv outside for the almost 6 years we've lived here (brand is insignia and have cable service). We don't cover the tv and have never had an issue. We also have sunshades and if we are sitting outside and weather pops up, we lower the shade.