They sit in unheated storage in most warehouses. They are hauled around the country in unheated semi trailers. My truck has more electronics in it than my fifth wheel and its parked outside so my tv's are staying in the camper.
Now if my house tv fails before an episode of Dancing With the Stars, my lovely wife will be "requesting" a tv to be transferred from camper to house.
2013 Ram Longhorn 3500 Crew Cab 6.7 Turbo Diesel, Aisin Transmission.
2014 Jayco Eagle Premier 351 RSTS, Mor/Ryde Suspension and Pin Box, 17.5" wheel upgrade, 18k Pull Rite hitch.