Appearance and content are different choices
Google TV provides caption preferences, but its help warns that some apps may not apply them. Those preferences also cannot establish that a programme supplies captions or a particular language. Style and track availability are separate questions.
If the viewer needs larger text, inspect appearance. If the desired language is absent, inspect the title’s supported tracks in the app. Changing a text colour does not add translated dialogue.
Use a programme with known captions
Test the system preference with an item that actually offers the intended track. Then inspect the app’s own caption controls. If the app overrides system style, follow its documented options rather than assuming the TV did not save the preference.
Check readability from the normal seat and avoid judging only a small settings preview. The displayed programme can use different line lengths and backgrounds.
Report the correct boundary
A useful report says the track is available but too small, the system style is ignored or the language is not offered. Those are three different requests.
This distinction prevents repeated accessibility changes from being used to solve a content-availability question. The page explains Google’s stated app boundary without claiming a tested result in every player.
Questions answered
Can a style change add subtitles a programme does not supply?
No. Track content and its appearance are separate.
Do all apps inherit Google TV caption preferences?
Google says some may not.
Sources & further reading
Official references for the subjects discussed. Service terms and device software can change.