Oops (thanks for correcting me, egnlsn), I missed that your real channels 3, 18 and 33 are off at 300-302 degrees true. Egnlsn is right that the Winegard HD-7082 probably won't have the beamwidth for 70-degree off-axis reception. Since most of your northerly stations are within 20 miles, and channels 3, 18 and 33 are 36-38 miles away (as a slight variation from jtbell's advice), you could cheat a bit with the aiming and test aiming directions around 315-320 degrees (closer to 301 degrees than due north, since those are your farther/weaker stations) and see if you can find a compromise fixed aim that receives all stations well. If that didn't work well, you could add a rotator and simply rotate the antenna as necessary. Or, if you didn't care about channel 3, then you could use a separate UHF-only antenna aimed toward 301 degrees for channels 18 and 33, aim the 7082 around 10 degrees true, and run separate coax lines from the two antennas down to an A/B switch next to your tv.