http://www.tvfool.com/?option=com_wr...a362aa8a0b9896 Here is my info link and I was needing some help. I have a HD Stacker antenna and a Winegard AP 8700 preamplifier. How can I pick-up channels 45 & 46 which are NBC and CBS. I get ABC and Fox Network now but can't receive the other 2 networks. I don't understand why; the ABC channel is just 2 and 4 degrees from the 2 I'm trying to pick-up. Can someone tell me what I need to do? Thanks