I use the 4228 to receive KLTV-DT at 28 miles. It works just fine. It is also bi-directional at VHF frequencies, so there is about as much gain out the back as the front. Have never tried it on analog channel 7.
Adam61, is there any reason why you want to receive BOTH analog and digital channels? If not, stick with the digital stations only and you should be able to receive these:
7.1 RF10 KLTVDT ABC-HD
7.2 RF10 KLTVWX 24/7 Weather
7.3 RF10 KLTV ABC-SD
19.1 RF18 KYTX-DT CBS-HD
19.2 RF18 KYTX-UP UPN-18 (To be independent 9/06)
51.1 RF31 KFXK-DT Fox-SD (HD by end of the year, will add 51.2 KLPN)
56.1 RF22 KETK-DT NBC-SD (HD by end of the year)
Anyway you cut it, if you use an outdoor directional, you are going to need a rotator. You are close enough that you may be able to get by with a multidirectional outdoor, like one of the TERK disc type antennas, but make sure that you can return it if it doesn't work.
All four digital stations in Tyler-Longview have nice strong signals - KLTV-DT at VHF is transmitting with 15kW, KYTX-DT at 640kW, and KFXK-DT and KETK-DT at 1000kW. KLTV's signal is not as strong as it was before the Red Springs tower fell, but it is still OK and will be back to normal once the new tower is completed.
I use the 4228 to receive all 4 channels at a single orientation, but I am in Longview the UHF stations are between 197° and 216°, with KLTV-DT at 254°. I am also farther away than you are.
You also may want to try to hit Shreveport. People as far west as Tyler have reported good success with receiving Shreveport.