Grumpy Old Geeks Products Knockoff - Amazon Brand Filter Product Knockoff - Amazon Brand Filter 2 mentions in 1 episode Knockoff is the browser filter discussed as a way to remove unwanted brands from Amazon results. Mentions The Darkside with Dave's Not Very Christmas Special Special Jul 13, 2026 8:17 I came across this browser filter 8:34 this filter just gets you to the good stuff on Amazon