Some channels use the default Roku caption setting, while others have their own setting within the channel itself. For the Roku setting, you will find it in the main Settings menu under Captions. You can have them always, on replay, or off. For the internal channel settings, you'll have to look inside each one for it's settings. Some, like Amazon, you can only access the captions menu while something is playing.
Dan
Roku Stick (3600), Ultra (4640), Ultra (4670), Ultra (4800), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Nvidia Shield, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.
