These are very interesting as Scott and Mark go behind the scenes of each Space Quest game and explain their design decisions, with the usual healthy dose of comedy. Really interesting for game developers or fans of the genre.
You can also all commentaries so far for Space Quest here if you can't make it to the live recording: http://www.twitch.tv/andromedaguys
Questions are encouraged during the chat. Last time Ken and Roberta Williams, original founders of Sierra, dropped by to chat as well.