Because of the extreme temp differences it is unlikely that either would be a good choice especially when you have the Hot Tub going and have all that extra moisture in the air in the winter and then likely cold as well with will cause condensation on the electronics that could short them out and kill the TV.
Have you thought about either spending a lot more for a model that IS designed for outdoor use? Or you should consider cutting a whole in the outside wall of the house and put a museum anti glare glass panel in that hole and having the backside of the TV facing inside the house where the temp is normalized all year round. This may not look good on the inside since you would either have to have it always opne or have a backside cover that is opened whenever you have it turned on.
Hope this helps & welcome to the forum!
