More specifically, what is the model number of your television set? You should be able to find it on either the back or the side of it, wherever the specification labels are.
(Note: All of these links provided are examples; I personally don’t own any of these. The only Roku I own is an Express+ 3910 with the analog outputs.) ~ Jordan
I’m into videotapes and old electronics stuff, including extenders, converters and analog 4:3 TV sets (which are obsolete these days), and Miss Bianca is my favorite character in Disney’s The Rescuers (1977) and its sequel, The Rescuers Down Under (1990). I am not a Roku employee, only a user like you. ~ Jordan