Reader Zachary Grant recently reminded me of the documentary film, Get Lamp. Created by Jason Scott, who is the webmaster of textfiles.com, an archive of online materials from the mid-80s, Get Lamp is about the history and development of text adventures, a once-important genre of computer games that have long since been forgotten. I played a lot of those games when I was younger and consider them an adjunct to old school roleplaying games, since they share many of the same design and esthetic principles. Indeed, there are worse ways to wrap your head around the old school mindset than to fire up a copy of the original Zork.
I haven't seen Get Lamp and, given the expense of the DVD, I'm not likely to do so in the near future. Still, I can't deny that it looks very intriguing. Text adventures grew up side by side with table roleplaying. Understanding them and their history is, I think, every bit as important to understanding the hobby as understanding miniatures wargaming, perhaps even moreso, given the continued influence computer and video games have on tabletop gaming.