•  Closed captioning – Controls when you see captions. 
This setting is only offered 
for Antenna TV, the AV input, and streaming videos. Any set value remains in 
effect across only these inputs.
 
o  Antenna TV – Set captions to off, always on, on only when the TV sound 
is muted, or on only during instant replay (when Live TV Pause has been 
enabled). 
o  AV input – Set captions to off, always on, or on only when the TV sound is 
muted. 
o  Streaming video channel – For streaming content that provides closed 
captions, set captions to off, always on, on only when the TV sound is 
muted, or on only during instant replay (for streaming content that 
supports instant replay). 
Note that some streaming channels have other 
methods for turning captions on and off. In these cases, the 
Closed 
captioning
 option does not appear on the 
Options
 menu.
 
Note: 
If the   button is not available on your remote, you can use this 
feature in the Roku mobile app. For more information, see Getting and 
using the Roku mobile app. 
•  Captioning track – Selects which caption track to display when Closed 
Captioning is on. 
This setting remains in effect on all inputs that provide 
captions.
 
•  SAP – Selects whether to play a secondary audio program or multichannel 
television sound, and which choice to play. 
This setting applies only to Antenna 
TV on digital channels.