I purchased (fitting up to a 65" TV) and hung my TV Shield late-fall 2021. As winter fast approached, must admit, I haven't used the TV all that much. I can say the picture "through the glass of the TV Shield" is very clear. We look forward to much outdoor time this spring and summer. Living in Iowa, cold and windy winters, the TV Shield has withstood what Mother Nature has offered. My only concern is with the portable heater. As stated in the directions, the heater is to automatically begin heating when the outside temperature dips below 40-degrees, yet I caught the "red indicator light OFF' multiple times when the temperature was well below freezing. Upon speaking with TV Shield Customer Service, they graciously forward a second heater at no expense. However, the second heater reacted much the same as the first. The TV Shield box itself does seal up very tightly and is well constructed, yet cold weather penetrates a plastic shell. I only hope the heaters provided enough protection to preserve my TV.