I still can't figure out why Discovery gives a big thumbs up to XDCAM HD. It's a crappy 4:2:0 long GOP 35mbps format, granted, that can look good, no disputing, but they get a little snobby about DVCProHD unless it's from a Varicam or 2000/3000.
they arent concerned with recording format they are concerned with the quality of the origionation, 1/3" chips. as far as discovery is concerned HVX footage is coal in a really pretty silk stocking.