Pixelmusement has a long-running feature called Ancient DOS Games, in which they, get this, play through and comment on old DOS games. For their 171st episode thereof, they turned their attention to Ultima 1:

RPGs had to start somewhere… Today on Ancient DOS Games, Gemini’s taking a look at Ultima I: The First Age of Darkness, a 1987 DOS port of one of the first computer RPGs ever made back in 1981 by Richard Garriott, also known as Lord British. The DOS port was published through ORIGIN Systems. This episode covers how the game is played, how to obtain the game, tips for playing, and how to get it working best on modern systems using DOSBox.

Also, be thou advised:

The “Similarities to Skyrim” thing is a running joke I did in my coverage of Excelsior, a game which was clearly inspired by this one. 😉

The video is just under sixteen minutes in length, and is certainly good for a laugh in a few places.