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, ...

Occasionally, we get to catch a glimpse of the hidden tests that ensure our technology-infused world runs smoothly: color bars on TV or blocks of “lorem ipsum” gibberish text. There’s a fascinating ...

Color bars signals are widely used and often misinterpreted. Their primary function is not, as is often supposed, the testing of transmission channels, but rather the precise alignment and checking of ...