[from BoingBoing:]

Video of retro Commodore programs

Kim Moser has lovingly captured a bunch of old Commodore PET and C-64
demos from the late 1970s and early 1980s, and saved them as movies
you can play online. "The early ones had blocky black-and-white
graphics, crude sound, and consisted of less than 8K of BASIC code,"
Kim says, "which makes them particularly retro-licious." Link:

http://www.kmoser.com/commodore/