(from the Paul's Smarter Brother department)
It's a little known fact, but my brother David is a silicon chip designer. At one point in his career, he worked for Sony and designed an RGB-to-Video (NTSC/PAL) chip for the PlayStation called the CXA2075.
Well, yesterday, I was poking around on the web, and found the data sheet for it (PDF). Very impressive Dave!
There's still a number of people who use it, too.
Dave's own recollections can be found here.