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http://assets.tivo.com/assets/resources/HowTo/Roamio_VG_r3_Jan2015.pdf
Sorry, there was a problem. Please try again later.https://www.tivo.com/quick-links/welcome-center-roamio try searching tivo.com website possibly under their support page or use their chat and perhaps they can lead you to one. I found that part within a couple minutes of clicking around.
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