The difference in model numbers is do to difference in direct access keys found on the remote. When it went from rc411 to rc463, only difference was the addition of the disney+ key replacing espn+ key. If it work on your Roku tv's, probably the 6 series, can't say for sure for your 4 series. It will pair with both, but don't count on the headphone jack working on the older tv. This goes for 411, 463, 496, and what model of headphone jack equipped remote.