buzz,
I am always skeptical about how dishes are prepared on programs like Emeril's, but a dark pan will cook a deep-dish faster than a shiny aluminum one. Like you, I have a pan around 9 1/2 inches, and I have been able to bake a deep-dish in it in around 25 minutes at 450 degrees F. (I preheat the oven at around 500 degrees F and lower the temperature to 450 degrees when I put the pan in the oven). If Emeril's deep-dish was larger than 9 1/2 inches, I am suspicious of the 450 degrees, 20-25 minutes claim, even in a dark pan.
Peter