We'd like to help. Have you tried resetting the app to see if that resolves the issue? Keep us posted.
@TeamYouTube I've been having playback issues on my LG TV for a few days now. Constant buffering breaks and the picture is so bad at times that it looks worse than the first ever camera phones! Please fix this issue, there's no update I can get for the app. 
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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