Maybe I can help. I was at a nearby location yesterday and had several scanners in band scan mode in the aircraft spectrums. Here’s what I found.
Air boss 121.85 (was 119.6 last year) sometimes paired with ground control 121.600
122.475 plane to plane
Thunderbirds 235.250 main control
149.650 also heard
Misc:
255.150
271.000
288.500
261.300
376.100
Happy monitoring, 73’s
de Harry.