Got my Toy Story 1/2 box set this weekend and was very impressed with the THX intro on TS1 (but not TS2 disk which I thought was strange). The normal THX intro is an insanely bassy noisy effect which just fills the room as the THX logo fades in. But in TS1, it 'breaks down' with lots of cracking and popping and the THX logo collapses.. The a little man puts on a jet-pack and flys around the room pulling switches and hammering. I thought it was really funny and was actually a good surround sound demo.