Let's examine a BASIC type-in from the August 1987 issue of Zzap!64 magazine that allows the Commodore 64's top and bottom borders to be "opened" or "removed" or "killed" or whatever you'd like to call it. Thanks to my patrons that support these extra-nerdy monthly videos. To support 8-Bit Show And Tell: Become a patron: https://patreon.com/8BitShowAndTell One-time donation: https://paypal.me/8BitShowAndTell 2nd channel: https://www.youtube.com/channel/UCAgWzEh5c8391eJnELDy9OA ZZap!64 Magazine, Issue 28, August 1987: https://archive.org/details/zzap64-magazine-028 End credits music is an instrumental version of the unreleased "You're My Favourite PET" by Bedford Level Experiment: null Index: 0:00 Intro: Zzap!64 and more 2:53 Typing In Listing 5:11 Debugging 6:14 The borders are open! 9:30 Sprites in the border 12:40 IRQ setup machine code 16:30 The IRQ code - where the trick happens 21:02 More explanation of how it works 26:40 Thanks!