Actually the Channel Master 3023 is probably the best antenna for UHF low signals. I bought one here this year and compared it to the 91XG and MXU 59, 4221 HD, 4228 old model and U 8000 and it was the clear winner on channels below channel 30 here. The 91 XG and MXU 59 perform virtually identically to one another on every channel and offer better gain on the higher UHF channels. If your primary concern is low UHF then go with the 3023.
http://www.summitsource.com/channel-...le-p-6678.html