A CRT television is a type of television that uses a cathode ray tube to display images. This technology was widely used from the 1950s until the early 2000s. The CRT works by firing electrons onto a phosphorescent screen, creating images through a combination of red, green, and blue colors. These televisions are typically bulky and heavy compared to modern flat-screen models. While they have largely been replaced by LCD and LED televisions, CRTs are still appreciated by some for their ability to display deep blacks and vibrant colors, making them popular among retro gaming enthusiasts.