How You Invented the Television

Back in the days before widescreen HD televisions, all of our TVs were in the shape of a square. This created issues when showing movies, because they were made in a panoramic rectangular shape. This meant that when you showed a movie on a square TV, there would be black bars across the top and bottom of the screen. For some reason - maybe because TVs were smaller back then - they did not want to waste any screen space. The black bars had to go. So, they developed something called “pan and scan,

ISS Space Art: Stunning SSTV Images Decoded from the International Space Station

Slow Scan TV (SSTV) from the International Space Station - Ham Radio Q&A