Question: The old man that comes in with his wife that can't breathe, the one that the head nurse tries to counsel and tempts him with a cup of coffee. I believe he is Alfred Hitchcock, though his name is not listed anywhere. Alfred Hitchcock is known for his cameo appearances in his own shows and in other shows. Can someone confirm that this is him? This is driving me nuts... It is toward the end of the episode, but I cannot give you times.
Question: How do the "door transporters" outside Starfleet work? People just seem to walk straight into them and vanish, a) faster than normal transporters, and b) without any indication they're controlling where they're going. There's no sign saying where each door connects to, are people just hoping for the best?
Question: At the last moment before leaving for good, Angel pauses to tell Buffy "I don't like him" [Riley], to which she replies with a large smile "Thank you." Why does she take this comment surprisingly well? From an ex boyfriend to her new boyfriend? It's not like it sounds like a friendly warning of any sort, nor a joke given the tense situation between the two guys in the episode. And the smile on Buffy's face does not make her response look ironic either, more like loving/caring. Is that a cross over reference to another dialogue in the Angel series?
Question: The protective suits Teyla & Sheppard put on to keep them from getting infected have a "helmet" piece that does not appear to have an airtight seal; the bottom of the hood just sort of lies on top of the body suit (it's not even tucked in). Is there some way they would be protected from the airborne virus even with what appears to be a very viable opening?
Question: Shortly after Sam throws some items off the life raft, Al appears and tells him that because of what Sam had done, neither he nor Vanessa would be saved for quite a while. If Sam had not done anything, both of them would have been rescued within an hour. I might be wrong about this next part so further verification will help. Al also said that because of Sam throwing stuff into the ocean, that somehow, instead if only being stranded in the lifeboat for a few minutes, four whole hours have passed. How could tossing anything into the ocean have made time move so rapidly?