Before streaming and 24/7 programming, there was a time when TV stations actually signed off for the night. Yeah, unbelievable. You'd be watching a late movie or dozing through infomercials, and then, ...

Are you old enough to remember growing up with no more than three or four TV stations to watch…and something called a test pattern when the stations were not broadcasting? Yes, TV actually signed off ...

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 ...