Last night at 11pm, Conan broadcast “Show Zero†live on YouTube. It was supposed to be a warmup show of sorts, coming a mere week before the actual show premieres. And it was, albeit a four minute “warmup show†in the conference room in their office, featuring a one-joke monologue, a one-sentence interview with Jim Parsons and a one-chord performance by Steel Train. No peek at the new studio or anything, but it was funny enough.