This is when setting the remote up to control tv power and volume, the step that comes after pairing your remote to your Roku? That just means it didn't find the remote control codes for your tv in its database. Our resident remote expert @Tivoburkee will probably be along with some suggestions on this.
Meanwhile, any tv with an HDMI port to which you can connect the Roku should be able to display programming via Roku once it establishes a network connection. The power and volume/mute buttons won't do anything until the remote gets set up for your set (you'll need to use the TV's remote for them for now) but the rest of the buttons should work to control the Roku.
Roku Community Streaming Expert I am not a Roku employee, only a user like you. Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X | Streaming Stick 3600
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