So, they just sent out a tweet that said:

If you’re much of a geek, you recognize that as Hex code.

If you can actually translate, or if you’re like me, you went to http://home.paulschou.net/tools/xlate/ and translated it to get:

When you follow the cue and search that in YouTube, you see a gloriously old school UNIX-y YouTube view:

Well done, Googs. Well done. Learn more about Geek Week here http://www.engadget.com/2013/07/25/youtube-unix-geek-week/