I think Muppets 3D and Tough to be a Bug are included on those PS passes they give with vacation packages.
I've only used the Alladdin one, the other 2 aren't necessary usually. We checked in about 10-15 minutes prior to the show and were the first group let into the theater. We got 1st row mezzanine. We've also seen Aladdin without the PS and waited about 20-30 minutes prior to show and got the same seats.