The 10PRINT program running on a Commodore PET, posted by Trammel Hudson, @qrs. 10 PRINT CHR$(205.5+RND(1));:GOTO 10
Abre los ojos – an audiovisual treat by oobc running in PETSCII textmode on a Commodore PET model from 1980. Video here.
Virtual reality in PETSCII on a PET, with stereoscopic goggles built from two iPhones. Made by Michael Hill, based on his PETpix from 2012.
Rain Dance, a demo for Commodore PET made by Bob Carr, 1980. Good stuff!
Microchess 2.0 (1978) a Commodore PET/CBM Game by Peter Jennings.Check the video here. Thanks to Mathman for the tip.