A CRT TV, or cathode ray tube television, is a type of television device that uses cathode ray tubes to display images. These tubes contain one or more electron guns and fluorescent screens that are used to view images. CRT TVs were common household appliances before the mid-late 2000s, and they were big, boxy, and often weighed more than standard flat-panel televisions. They were designed to output 240 lines of horizontal resolution on the screen at a time, and the electron gun blasts electrodes at the inside of the screen, hitting a "mask" and lighting up the phosphors not covered by the mask, which gives CRTs their distinct brightness, rich colors, and ultra-deep blacks.

CRT TVs are easily identifiable by their unique design elements, including a boxy design, a back angled down and away from the screen before squaring off, and a convex screen that curves outward, away from the frame. They also weigh significantly more than a plasma or flat panel and cannot be easily mounted to a wall.

While CRT TVs are no longer in style, they can still be found in some households and manufacturers still sell them in Asia and the Middle East. However, they are difficult to recycle and contain high levels of toxins, including lead, mercury, and toxic phosphor dust. Therefore, it is important to recycle them properly and not throw them away in a landfill.