Here is an outdoor weather-ready pop-up TV lift cabinet that can raise and lower your display without you having to break a sweat. The Cabinet Tronix Outdoor 55-inch TV Lift Cabinet is made with Ipe wood. It can handle TVs up to 70lbs.
This TV cabinet measures 58 inches wide, 21 inches deep, and 41.5 inches high. You can find this on Etsy. More information is available here.