An interesting article about the set of Boeing-Boeing:
At 'Boeing-Boeing', It's Seven Doors, No Waiting The story also talks a bit about the cast. There's only a brief mention of Brad (well obviously, since he's not in the show anymore), but it's still worth the read.
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And for the Beatles fans out there, here's a possible clue about the identity of Eleanor Rigby:
Document offers clues to Beatles enigma That song used to creep me out when I was a kid (...wearing a face that she keeps in a jar by the door? You'd think it was weird too if you were eight.). Now it's one of my favorites.