For a CPP dinner reservation, you'll have to call or go online to specifically reserve. You cannot (or couldn't in the past) convert a regular reservation to CPP. If you're traveling in 2012, you'd better hurry! Your narrator choices are Jodi Benson, Lea Salonga and Alfre Woodard -- all fairly famous.
The CPP is a religious holiday music program performed with an ensemble choir of CMs and local/regional choirs, backing up a celebrity narrator who will read passages from the biblical account of the Nativity. It runs about 45 minutes and showcases great music, stirring passages, and a chance to see a celebrity in person.
Your CPP package (can be applied to your DDP TS credit balance) includes a three-course meal, early admission to the CP seating area, and roped off viewing of Illuminations! from the FW end of the lagoon. We loved it!