Pretty much every display you can buy today is either LCD or OLED. But for decades, the cathode ray tube was the only way to watch video. This older clip from How Its Made show the process, including filling the tube with phosphors, adding conductive elements, and installing an electron gun to create images on the tube.
Japanese electro-punk group Electronicos Fantasticos is known for making music with unusual instruments. In this clip, musician Ei Wada shows off an electronic guitar known as the “CRTelecaster” that uses feedback created from the screen of an old CRT television set to produce sounds. More CRT goodness here.