1) The document provides step-by-step instructions for creating a VHS-style video effect in After Effects, including applying color shifts, blurring, importing VHS footage and glitches, and adding tracking lines and static.
2) Techniques like precomposing layers, adjusting layer position, and adding effects like Unsharp Mask are used to simulate qualities of low-quality video.
3) Sound effects are also distorted over time to match the deteriorating video and build tension through increasing volume levels with keyframes.