Thanks everyone.

I forgot to mention that I had all the firmware updates that were available (it took FOREVER! - like 40 minutes for each of two updates).

I'm really hoping it's not the receiver. I don't think I can afford to upgrade that at the moment, even though I'd LOVE to have HDMI switching. I might try to see if there's a different audio track on the disc, though.

And yes, Firefly is on Bluray. I'm super excited about that. There are only going to be a few areas where I double-dip, but that and Serenity are two that I won't mind.

Sadly, the one TV show I'd give my right arm to see on bluray I'm sure will never happen: Carnivale. Easily the most gorgeous TV show ever made (IMO), and I'd kill to see it in hi-def since I never got to see it in HD initially.