[rabbit73]

To clarify, if I point in the direction of Fox, I get a strong signal (~75), but then ABC is pixelated.

Good, that's normal and promising.

I thought about using a splitter and trying both antennas. Where should I put the splitter? Should I have it outside and combine both antenas there, then run one wire to the TV?

There are several ways you can combine your antennas. If you use the MS-2000 for 38, 8, and 44, and the TERK for CH23, both antenns will pick up CH8 which might cause a problem. You can insert a UVSJ after the TERK power inserter to block 8 by using the UHF and common ports.

Since your antennas have preamps, the coax to them carries DC up to the preamp and the signal down to the TV. An ordinary 2-way splitter does not pass DC, so it must be placed after the power inserter/power supply.

If I had your antennas, this is what I would try if using a combiner:

4228 for CH23 > coax to inside > UVSJ to pass UHF only \
                                                         > combiner > DVR
TERK for other 3 CHs > coax to inside > power inserter /

You can make a temporary setup for this test, but if you find a way that works you should ground the coax with grounding blocks, and connect the grounding blocks and antenna masts to the house electrical system ground with no. 10 copper wire to meet NEC requirements.

If CH23 isn't strong enough, you will need to add a preamp to the 4228; the input of the combiner would come after the 4228 preamp power supply/power inserter.

If you were to put the combiner outside, you would need use rubber boots on the coax connectors for waterproofing with a permanent setup.

The 4228 can keep its reflector for this combiner test because it is only for one direction, but I prefer the simplicity of solution No. 2 without the reflector (removing the reflector from an 8-bay or 4-bay antenna converts it from a uni-directional antenna to a bi-directinal antenna---I favor the 4-bay for its wider beamwidth) using just one bi-directional antenna for all 4 channels.

The similar single bi-directional antenna suggestion by teleview is also good.