Connect a USB-C hub or USB-C to HDMI adapter to your Steam Deck. Locate a free HDMI port on your TV, and connect an HDMI cable. Plug the other end of the cable into your USB-C hub or adapter.
Uni’s USB-C to HDMI Cable is an expensive-feeling nylon braided cable with aluminum plug housings that comes in a range of lengths from 3 to 15 feet, offering more options than the competition.