I envision it more as something NBC would do. They've spent three hours on Sound of Music and Peter Pan, why not a huge variety show? The original article has musical guests throughout in order to fill time taken to set up some of the grander challenges. The most recent SDR took a little more than five hours--either shrink the scope to fill the 8p to 11pm Saturday night hole, or go all the way and blow out the late local news and SNL. The bigger issue I have is that I don't see Best Time Ever with Neil Patrick Harris staying close to the Saturday Night Takeaway format which is to their detriment, so I'm similarly pessimistic over Beat Your Host.