Hi Reggie,
Great question! There is actually a way to share events between two sites. If both sites are using The Events Calendar, then you can install our iCal Importer add-on on one site and set that to fetch events from the other site on an automatic basis.
This will even work if only the one site is running The Events Calendar. iCal Importer can fetch events from any online calendar, as long as that other calendar has a valid iCal feed to pull from. In fact, here are a few posts that go into greater detail on how to pull events into The Events Calendar from other sites using iCal Importer.
Does this sound like it will work for you? Please let me know. 🙂
Cheers!
Geoff