Overload from TV signals is NOT an issue at your location.....but if you enter your location into
www.FMFool.com, you'll see exactly how close you are to KCLU-FM on 88.3 MHz [only 2 miles from zipcode location]. The second harmonic falls on top of Ch7 (ABC) and could make reception very difficult...if this is the case, you probably need to add an Antennas-Direct FULL BAND FM FILTER on the INPUT of the Preamp (NOT Radio-Shack's, which has minimal attenuation on lower FM Band in order to Pass Ch6).
Inexpensive RCA TVPRAMP1 should be just what you need...
In order to increase UHF Gain (you're gonna need as much as possible) and provide more resistance to Multipath, I would recommend A-D DB-8e for UHF and Antennacraft Y10-7-13 for Hi-VHF, using A-D's VHF/UHF Combiner. [They also have a smaller visual impact.] If you ALSO want Ch21/23/24 (and MAYBE Ch27) from the NORTH, you'll need a Rotator....which INCREASES the visual impact.
If you ALSO want Ch2 & perhaps Analog Ch6 (AUDIO ONLY...until it shuts down) from the NORTH, you could add an Antennacraft Y5-2-6 VHF Antenna with a HLSJ (Lo-VHF/Hi-VHF+UHF Combiner) inserted on the OUTPUT of the Preamp (NOT Input, these signals do NOT need to be amplified). For the PAST YEAR, Ch2 KHIZ broadcasted Country Music Videos.....and next year, who knows:
http://en.wikipedia.org/wiki/KHIZ-LD