I found this link, and it's very educational for those who don't understand the basics, like me. :-)
http://www.hdtvprimer.com/antennas/basics.html
That page basically says I need a low noise pre-amp with enough gain to cover the signal loss over the coax, and another 10db to keep the Tivo receiver out of the picture. It goes on to say I could boost it another 10db without causing problems @ the receiver.
So, I could in theory, use a pre-amp with a 25+ gain. Wow.
What about one of the
Channel Master 7777 pre-amps? Recommended? They have a higher 15V voltage that could transcend the coax without too much drop, and enough gain to compensate for signal loss. Low noise too, at under 2db.