they're all on nbc's website, except the one that aired this evening, which will probably be added a week after the air date, and episode 4, which didn't air at all...i don't know if they'll leave them all up indefinitely though.
apparently, it was bryan fuller's idea, not the network...i imagine he thought if it aired and there was any type of negative feedback, it would do the series more harm than good...what is listed on 1channel as episode 4 is a group of clips from that episode which help develop some of the characters and their relationships.
This series started out slow and I was close to losing interest, but I'm really happy I didn't. The last two episodes were a lot more Hannibal centered unlike those before that mainly focused on the other serial killers. I'm really digging the tension created by him being so close to those who are are hunting him. This TV Hannibal is gaining some of the Omniscient arrogance that I found so enchanting with the movie character.