They generally rotate on the half hour. One will be at say 10:00AM, the other at 10:30, etc. I believe around 1 or 2PM there is a small break (probably for the entertainers to eat lunch) and then the schedules are reversed as the show that was previously playing on the hour will now be playing on the half hour (2:30, 3:30, etc). Then there will be another break around 6PM or so (I assuming dinner) and the shows go back to the time slot they were at to start the day. Hopefully that makes sense.
Long story short, you'll have plenty of opportunities to see all of the shows.