I was at the Miramar Airshow today (saturday). The usual Blue Angels diamond and solo frequencies were active again this year, BUT the show box frequency was noticeably absent. I finally found it about 10 minutes into the show using signal stalker.
251.60 - Show Box (crowd center)
275.35 - Diamond
237.80 - Solos
The usual Comm Cart A & B channels were still active, and Air Boss runs the show on the VHF & UHF Miramar Tower freqs. I'll do a more complete write up later.