This video from the January 1984 Boston Computer Society meeting is really special:
The machine was actually introduced a few days before at Apple’s annual shareholders meeting, but the Boston Computer video is of higher quality, and includes a panel made up of Steve Capps, Andy Hertzfeld, Randy Wigginton, Bill Atkinson, Bruce Horn, Burrell Smith, Owen Densmore and Rony Sebok, taking questions from the audience. There’s a spicy one about the Apple III in there that’s a lot of fun.