Guide Update taking a tuner and Sling Adapter

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So I got my Hopper/Joey install. Had the Joey on and was using the Hopper. PTAT was starting so when it was asking me what I tuner I wanted to use it showed the PTAT, what the Joey was watching, and a greyed out "Guide Update". So thats interesting that the update to the guide takes up a tuner.

Also tried the Sling Adapter right after hooking up and got an Error 6, wiull try again tomorrow. But I did get my PTAT right before the cutoff.