I have the "Times Guide and New Information" from our recent trip dated 9/26/04 - 10/02/04. It shows the MGM hours for Playhouse Disney as....(Daily) 10:00, 10:45, 11:45, 12:30, 2:00, 3:00, 4:15, 5:00 and for Voyage of the Little Mermaid (which we loved!) as....(Daily) from 9:45 to 6:30.
I found the hardest part of touring MGM was trying to schedule the day around all the show and parade times. We did fit in everything we wanted to see this time!! Last time we didn't realize the specific show times and missed Indiana Jones. We were bummed, but really enjoyed it this time and my husband even made the show as an extra!! People even recognized him three days later at TL!! Have fun!!