It’s not “decades” old but Xbox One had a screen recording feature that I used a few times.to save fun clips.
One time, I was playing AC: Odyssey and attacking a fort. Some general guy noticed me and followed me back to the edge of a cliff where I just went over the side. This motherfucker just hops off the edge and I watch him fall all the way down and slam into the rocks below. It was hilarious.