Might come as a shock to some, but “Supernatural” has been the best genre show of the fall. Better than “Heroes” or “Sarah Connor Chronicles”, probably cheaper too. It flies completely under the radar on the CW -- which only seems to have eyes for “Gossip Girl”. Great episode tonight. They’ve ventured into areas that even “Buffy” was reluctant to explore with the whole angels vs. demons stuff. It’s like a beefed up “Frailty” meets "Prophecy". The show is still about good battling evil, but there’s a murkiness to it all that really works. Will definitely get this season on DVD.