Hi, I'm Nathan.Sorry to hear that you're having trouble with this but I'll do my best to help you.
What is the model of the sharp, Jim?To confirm, netflix (internal app?) works, as does the dvr, but "live" tv does not work?
What about other sources (dvd, games, etc)?Who provides your dvr box and cable/satellite service?
Do you need more help with this?
If so, simply reply back on this page.
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