Lesson one from debate 1 of the 2012 race---since FOX et al clearly will be doing EXACTLY what they did in 2007-8, let's stop inflating the importance of these cable TV debates. The job of the campaign and each supporter is to get Paul's name out there to the BROADCAST TV audience (10-20 times larger), which will force the cable news outlets to be fair to Paul. The point of the cable debates is for the MSM to position themselves as "giving all the contenders a chance" while really maneuvering to advertise the establishment choices.
The primary debates act as a shunt to distract our attention from getting CBS/NBC/ABC to cover Paul, much like the Commission on Presidential Debates next fall takes the heat for excluding third parties, by design, so that the Democrat or Republican candidate doesn't have to face it for doing their own excluding (after all, they could always hold a debate outside of the CBD auspices that includes other candidates). Don't get distracted this time. Whether Luntz will ever play fair is irrelevant, getting Paul more coverage on regular TV is what's important.