3D televisions are designed to create a three-dimensional viewing experience, allowing viewers to see images with depth, similar to how we perceive the real world. They achieve this effect by displaying two slightly different images simultaneously, one for each eye. Special glasses are often required to view the content properly, as they help the brain combine the images into a single 3D picture. These televisions can display movies, games, and other content in 3D, enhancing the overall experience. While 3D technology gained popularity in the early 2010s, it has since seen a decline in consumer interest, with many manufacturers shifting focus to 4K and smart TV features instead.