You Don't Know Jack (commonly abbreviated YDKJ) is a series of computer games developed by Jackbox Games (formerly known as Jellyvision Games) and Berkeley Systems. Share this Rating. Title: You Don't Know Jack (TV Movie 2010) 7.7 /10. Want to share IMDb's rating on your own site? Use the HTML below. This is one of my favorite games ever! Unfortunately, the only ones they sell on Amazon are the original versions that were made for older computers. You Don't Know Jack is derived from the phrase You don't know jack shit and may refer to: You Don't Know Jack (video game series), a 1995 computer game series The official website for the HBO Film You Don't Know Jack, featuring videos, images, interviews and schedule information. Download You Don't Know Jack [Download] and play today. You Don't Know Jack The irreverent trivia party game…YOU DON’T KNOW JACK - where high culture and pop. Developed by Jellyvision Inc. Game and Software © 2011 Jellyvision Inc. YOU DON’T KNOW JACK®, Jellyvision, the Jellyvision logo, and the YDKJ head are registered. Hi! We’re Jackbox Games. You may know us from our mega-hit trivia comedy series YOU DON’T KNOW JACK. Or maybe you know us from our recent BS-slinging sensation.