Gardner passed along this infographic he made that lists off all of the quick ways to get into the Roku’s many secret menus—menus that let you calibrate the image, tweak network settings, even access developer options. Get ready, we’re about to void your warranty.
Of course, many of these shortcuts weren’t designed for use by at-home users, so you may find a lot of features and toggles you actually shouldn’t mess with if you want your Roku to keep working normally. Tread carefully, and read up on each setting before you decide to tweak it. For example, some of the menus let you tweak your Wi-Fi settings on the fly, adjust the bit rate of incoming streams, and more.
Gardner hosts the graphic on his web site (linked below,) but he also included a few other quick references that are helpful, like a thread over at the Roku subreddit that runs down many of these commands as well, and a longer, more detailed video that walks through many of these settings one at a time and what each of them does. If you’re interested in seeing each one in action, check that out, but in the interim, check out the graphic below, or at the link below.