@gonemko
Have you tried this section on the Hulu support page regarding changing the "format" of closed-captioning.
https://help.hulu.com/article/hulu-using-captions#format
Refer to the "living room" devices. These are streaming devices like Roku.
Looks like you can change them from within the Hulu channel/app under their own Settings/Subtitles and Captions.
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Has been awhile since I had an active Hulu subscription though, so can;t remember, nor check. (awaiting new season of Only Murders in the Building before considering a renewal).
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
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