Robert Yang (who I've mentioned here before) made such a good let's play of the first room and corridor of Half-Life.
A "let's play" is traditionally a narrated video of one or more people playing through a video game. Usually they are just to document the video game so that it can be experienced or understood without playing it, but some of the best ones are made by people who know the game inside out and are able to add some amount of context or commentary to the play-through, drawing the viewer's attention to specific details and not getting side-tracked by any difficulty in progression. There are many great let's plays on the Let's Play Archive.
Robert Yang's video is not really about the game as it is played, but about the design of the game from the perspective of a level designer. It was made for a let's play event.
I don't think he has plans to do more but I would listen to that guy talk about level design any time. A couple of the comments under his post of the video are worth reading too.