[Nicholas Murray]’s Composite Test Pattern Generator is a beautifully-made, palm-sized tool that uses an ESP32-based development board to output different test patterns in PAL/NTSC. If one is checking ...

The picture on a TV set used to be the combined product of multiple analog systems, and since TVs had no internal diagnostics, the only way to know things were adjusted properly was to see for ...

Long before HD and digital television, before cable and flat screens, Channel 6 looked a whole lot different. A slide, called a test pattern, was the first-ever image broadcast on KOTV on October 15th ...