Connecting TWO of the
same band antenna's (two UHF or two VHF) is usually
very problematical, and is unlikely to work properly without a Jointenna type device (combo bandstop, bandfilter). One antenna would be for all VHF stations EXCEPT the special one in the other direction. The second VHF antenna would then be aimed for that special single station that you want. If you are expecting both antenna's to get
multiple VHF channels, it's very much black magic for any particular situation, and you can only try and see what happens. You might be one of the lucky ones, and find the combination that will work for you.
Read this thread for more info,
http://www.avsforum.com/forum/25-hdtv-technical/1152566-great-jointenna-exchange.html and
especially pay attention to page 3, where I discovered a guy in Slovakia that manufactures Jointenna devices that can be tuned to U.S. ATSC frequencies. They are also quite cheap compared to Tin Lee in Canada (who makes custom devices), and I have used several successfully.
http://www.ebay.com/sch/jan_jenca/m.html?item=121758149132&rmvSB=true&ssPageName=STRK:MEBIDX:IT&rt=nc&_trksid=p2047675.l2562
Of course, you could also pull down separate coax's for each antenna, and use a simple coax switch to choose between them. That's by far the easiest way for a solution, though not as good if you plan on doing unattended DVR recording, and channels are on different antennas.