Haven't gotten mine going yet either. Simple setup, one LNB having two connections (either one is supposed to be good, they are there to support two sets).
The receiver is a known good one, it worked beautifully when we left home this week. The LNB and dish are brand new, from Bell (our sat supplier).
A neighbour even has a device for checking signal, basically a meter, and when run through my LNB attached to my dish at the co-ordinates that Bell gives for the rig, it gets a 100% signal, and yet, no joy, no signal on the receiver's "set-up the satellite" menu.
Many neighbours in the camp have Bell, and it works great for them.
And now the guy that sold me the LNB and dish isn't returning calls, to boot!
ps: to watch one channel while recording another requires two tuners. Your DVR/TVO must have both built in, I suppose. At home, I have had two receivers connected at the same set to be able to do that, but I can never keep up with the recordings I make, so never bothered to use that feature.
If it's to be, it's up to me.