This article explains how to get Discovery Plus on a Roku streaming device. The instructions will work for any Roku that is compatible with Discovery Plus.
How to get Discovery Plus on ANY TV
The official Discovery Plus app is available directly from Roku. The easiest way to download and install it on your Roku is to add it while you are using your Roku device.
If you have a Roku, everything is set up, and no one else is currently using it, here's how to get Discovery Plus:
From the home screen of your Roku device, press the remote until you reach Search.
