Hello, I have two new Tivo Premiere's.  There hooked up to my 30-35 yr old attic antenna that looks simular to a CM 3018 6-7' long.  My problem is with the UHF channels primarly 2-1 around 25-35 on Tivo meter, but 4-1,5-1,9-1 are also between 41-55 most of the time.  What happens is that 2-1 will freeze.  7-1 and 11-1 Hi VHF are good 86-94 on the meter never a problem.  I tried moving antenna and installing a Winegard Distribution Amp HDA-100.  When I installed the amp about 20' from antenna, then down 30' to the 4 set spliter, and then 20-30' out to all the separate lines,  all the UHF channels went to 0 on the Tivo Meter, but on regular TV (w/o Tivo hooked up) were okay??  So I double checked hookup everything was okay.  Then I hooked it up with the power inserter down in the basement near the 4 set splitter same results.  So then I tried going direct from the antenna w/o amp and 4 set splitter, I got the same result all the uhf gone????  Then I installed a 2 set splitter only and the one line to the one Tivo, all the channels came back, but still the signal levels were the same just slightly higher???  So removed the 2 set splitter and hooked up the 4 set splitter, so everything was back to where I started, all channels back and 2-1 still freezing at times.  So now that you know all this info, why won't a Tivo work with the Distribution Amp and why with nothing but a straight line to one Tivo did I also loose all the UHF?  This really doesn't make much sense??  
http://www.tvfool.com/?option=com_wr...e07cea7e815dc3  Also FYI, I use to install antennas, Repair TV's and VCR's so I have some background,  this just doesn't make sense?  Thanks for any feedback