Hey, tightpurchaser
We noticed you're experiencing issues with your remote buttons and your TV brand wasn’t available in the list. Thanks for already trying some troubleshooting steps.
The TV brand in Roku settings helps the remote control your TV’s power and volume. If Impecca isn’t listed, those buttons might not work—but streaming won’t be affected. You can try choosing a similar brand that uses the same remote codes.
You can also visit this link for troubleshooting steps to restart your Roku remote. Once you've completed the reset, go ahead and pair it again. After that, please check if the remote is working properly.
Let us know how it goes!
Roku Community Team