For those attending the airshow, the Air Boss freq is 120.125 or 293.4. If you don't know what that is, in an airshow ATC can become very complicated, so they delegate authority to one person for all the airplanes! Should be some interesting traffic on this one!
I'm not sure whether the Blue Angels or Thunderbirds will be performing, but there's articles for each in our wiki that summarizes other shows reported on RR and what freqs they used. Note that the MT article for monitoring airshows is the gold standard for freqs, and should be one of your references...
Be sure to update the appropriate article. In fact if anyone wants to use the wiki to record all freqs used at the airshow, feel free. That way you have a running log of freqs that can be tracked from year to year.