OK, more progress made. I tried using zap2xml to retrieve the data and successfully configured Media Center to import it. Another plus with this method is I'm getting 20 days into the future of program information. The Movie Guide view as suggested by jachin99 is now populated with only movies, or at least what is tagged as a movie. That confirms that the OTA EPG info does not contain the movie tag.
I'm very close to what I was hoping for, and if this is as close as I can come, it will most likely work. My question now is it possible to customize the way this information is displayed in Theater View? I'd like to change the info on the left side (now is title, day of week, time, channel: would like title, date of broadcast, time, channel). I was also wondering if it could show as tiles, hopefully with the DVD case image, rather than a list to scroll down through. Again, something similar to WMC.
Again, you all have been of great assistance, and I think this is going to work for me. I'm sure there are lots of little tweaks I can find if I keep working on it.
Thanks all!