What is the the BrightScript code to enable subtitles if I am using a video node as my video player? I've attempted to enable the player by setting globalCaptionMode to "On"; however the subtitles do not appear.
Also, what formats of closed captioning are supported? Is it only SMPTE-TT, EIA-608, WebVTT as it is indicated on the following documentation URL? The same documentation page makes reference that SRT is available on legacy Roku platforms. However, does this mean that the SRT format not available on all Roku devices?