Funny you should mention the "Bird in Time" box. I just learned about it today when I was browsing Ebay listings and I bought one! Should have it in hand soon. I listen to Phil Schapp's "Bird Flight" about once a week (Phil Schapp daily is just too much for me to handle!) so I think I've already heard most of the earlier stuff on that box, but it will be quite nice to have it all collected without Schapp's pedantic narration.
That Fran Staterna "Tribute from Sweden" is still the only place I know to hear those particular Goodman/Gray airchecks. I've bought all the CD's featuring Goodman/Gray/Hasselgard but none of those Rose recordings are on them. And none sound as good as the Rose recordings. The Charlie Christian side is nice too but not quite as unique as the Wardell Gray side.
As far as I can tell, all the Bird Royal Roost recordings originated with Boris Rose too? Apparently they're not truly airchecks because Rose may have bought off the house technicians to give him Pre-broadcast copies? As I recall, on the New Year's Eve broadcast Symphony Sid does say "And now we take you an hour earlier down to the Royal Roost" as if maybe there was an hour delay between the performance and the broadcast, so maybe they were cutting records there at the Roost to be broadcast an hour later? And somehow Boris Rose got ahold of the transcription discs?
I always wanted to know where were all the OTHER Royal Roost broadcasts that didn't feature Bird? I know a few have survived featuring Miles and Prez. Any others?