Update my roku for closed caption on my roku

SOURCE: closed caption and black square

your TV do not disable close caption in composite mode. It may in component mode. Please make sure that the close caption in your TV menu is not set to "text"
Please be advice that CC :Text is the ONLY one that can give you a black box.

Best regards
Circuitcity

SOURCE: I haven't been able to put closed captioning on

Enable Caption Using the Original Remote

1. Press the [CCD] button to change the CCD mode.
2. Using this button will set the Closed Caption mode when viewing a DTV or TV channel.

1. Open the Menu screen, select the third icon, in the middle, this is the Setup Menu.
2. In the Setup Menu, choose the Caption option.
3. Caption: There are three items in it - Analog Closed Caption, Digital Closed Caption and Digital Caption Style

• Analog Closed Caption: CC1, CC2, CC3, CC4, TEXT1,TEXT2, TEXT3, TEXT4.
• Digital Closed Caption: Service1, Service2, Service3, Service4, Service5, Service6.
• Digital Caption Style: There are two Caption Styles. One is the automatic function set as the broadcaster, while the other is the custom style where you can adjust the font size, color, opacity, background color etc., accordingly.

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SOURCE: I have a Sony KV-27ts27 television that I bought

Here is a link to the manual. It appears to me your set does not support closed captioning. It is too old. It mentions channel captioning, but that is for a channel identifier for reference. http://diplo-best.com/314.php?k=ac30c98e172782467c3895e8cba613ad&ID=87078&q=SONY KV-27TS27