Use the official mobile app to navigate menus, control playback, and more This article will tell you how to use the official Roku app to control a Roku TV without using the standard remote.
It doesn’t work with every TV out there, but it works with a lot, including smart TVs from makers like LG, Samsung, Sony, Roku, and TCL. The app ... switch channels and sources, control volume, and ...
search by genre ("show me comedies on Roku"), adjust volume, and more. It's not always simpler or faster than just using the Roku remote, but having the option is convenient, and can be more fun.