Here's a 45-minute video of a talk by Barry Silverman of the visual6502 project. The event is 'World of Commodore' in December 2011, in Toronto, hosted by the Toronto PET Users Group.

The audio isn't terribly good - the room must be next to a noisy corridor. Barry starts talking at 1m20 and the impression is that the audience is still talking amongst themselves - but it barely changes throughout.

Some of the material is from Greg James' presentation at Siggraph 2010 - huge pdf here - and the spacewar and 4004 reincarnations also get a look in.

(It's noted that Greg got Chuck Peddle's name wrong, and Barry perpetuates the error)