@Curlyphil-
Roku TV remotes from any Roku TV manufacturer or from third party suppliers largely use the same standard set of IR commands and are interchangeable for use on Roku TVs from other manufacturers.
* EXCEPTION: Remotes from HiSense and Sharp can only be used with HiSense and Sharp Roku TVs because they issue a different set of IR commands than the rest of the Roku TV manufacturers. The Roku TVs from HiSense and Sharp themselves, though, support both sets of IR commands so they can be used with remotes from any Roku TV manufacturer.
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
If this post solves your problem please help others find this answer by clicking "Accept as Solution.".
Streaming Stick 4K+ 3821 | Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X
