To see Turtle Talk I would suggest going for the first show. I think the first show is at 10:00 am and then every 20 minutes.
We tried to see Crush one day last weekend and it broke, but the cast members just kept saying it will be a few minutes, then the next one will be at 11:20 am (we were waiting for an 11:00 am one and had just missed the one right before so were in the front of the line), then they disappeared to only come back and say a few more minutes. Anyway, we didn't get to see it then because we had already waited 40 minutes and they didn't know when he would be back up, most people were ready to riot since most parties had small kids with no patience.
We did finally get to see Crush last Wednesday and did with not musch wait at 10:00 am. We got in line for the Living Seas at about 9:30 am and there was no line or wait, went passed the film to the hydrolators (to the left), and then saw some fish, did kidcot, and lined up for Crush about 9:50, since more people were coming. When we got out of the show the line was full. When we left Living Seas the line to get into Living Seas was long, at least 30 minutes or more wait. I can't remember seeing the Living Seas that popular since when it opened.
Just my tip on seeing Crush! That turtle turned out to be the hardest thing to see this trip!