"The World Premiere of the Amiga (1985, Andy Warhol, Debbie Harry): Possibly wanting to one-up the Apple Macintosh launch in 1984, the Amiga 1000 debuted at a black-tie event held at the Vivian Beaumont Theater at Lincoln Center in New York City on July 23rd, 1985. (...)"
Andy Warhol, Kenny Scharf, Keith Haring, and others were were given an intro to the Macintosh by Steve Jobs himself, at Sean Lennon's 9th birthday party in 1984.
Keep in mind that the footage of the computer starting at 13:03 has now been revealed from this article to be from an earlier rehearsal. Now I understand why there's this cheesy fly in effect!
Warhol paints Debbie on stage:
https://youtu.be/_QST1ZAJ29o?t=719