I just wanted to pop in and hopefully someone may find this helpful. I was having the issue of CC staying on even though I turned it off in the Roku from the Home screen>System settings. So many suggestions I found here are so complicated and time consuming so I kept searching, I mean who wants to futz around with removing channels, restarting the system, reinstalling the channels..blah blah blah. Anyway to the point, what I found is a quick and dirty fix that worked for me mostly because it is really quick.......if you have the CC turned off in the main menu of the Roku and you still get CC on that programs you are watching just hit the pause/play button on your remote, you will see either the cc box on the bottom right or just directly beneath the pause bar, scroll over to it and click on it, it will bring up a menu where you can turn it off there for the program you are watching.....done!
This worked so quick and easy I just wanted to share, we just got our TCL 6 series roku TV 4kHDR so it is taking some time to get everything set up and working to our liking. This one particular topic was annoying because of so many workarounds that took way too much time. I hope this little quick fix will help others that get frustrated by taking so much time to figure this out.
