@YouTube is not working on my TV again 

Why????????
Try clearing your browser's cache and cookies. If you need a how-to, this guide is helpful: https://goo.gl/xucIvG . Let us know if that clears things up.
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I can’t get into it at all. There’s no help on clearing cache on TV in that link
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Try these steps: delete the app > restart your device > reinstall the app. Let us know if that clears things up.
End of conversation
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