Amid Evil was great but someone forgot to tell Dave Oshry to tone it down a bit before the run, lol!
Frick Cancer in the Bum!
There was an amazingly entertaining speedrun of a 3D platformer where the french dev phoned in but i can't remember the name. They had a good discussion about fixing stuff but not breaking it for runners.
Not GDQ but the DoubleFine video where they watch a speedrunner play through Psychonauts is fantastic just to see the programmer reactions to glitches and artists laughing then realising he's skipping 90% of the work they put into the game. lol.
I think tim has fired all of them by the end of the run. The speedrunner even says he's a bit rusty and not the WR holder but still amazes them.