Roku remotes with TV control buttons (power and volume controls) will only control TVs with IR. They will not control your DVR or other device. Depending on what you're attempting to do the Roku remote can perform some limited HDMI CEC functions. But it won't control the DVR itself with any buttons on the Roku remote.
Also, Roku Stick players do not support IR control, so you can't use a universal IR remote to control the Stick. You're stuck with a minimum of two remotes.
At the moment, the Spectrum channel for Roku has been removed from the channel store. If you have it now, its functionality has been hit or miss with many users. You can't add it to a new player. If you remove it you can't add it back. Spectrum and Roku are in contract negotiations, and so far they don't seem to be getting anywhere.
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