Let the hive mind of Engadget get that for you.
"I need help! I want a small pocket camcorder but I'm not sure which one to get. I don't want to fall into the hype of the Flip because I worry two hours won't be enough. What should I be looking for when considering a small camcorder and where can I get a good quality one with expandable memory? Thanks!"
With the sheer number of cameras needed to film a reality show and the amount of storage & editing horsepower needs, I highly doubt they come out of the gate with a reality show in HD first. Studio show makes MUCH more sense.