Not only is it NOTAM'd, there is a Freephone AIS information line on 0500 354 802 with a recorded announcement for the day, detailing all RA(T)s and Red Arrows displays.
The AOPA journal General Aviation this month, talking about the Red Arrow airspace infringement problem, goes on to say:
"It's free, it's easy - try it right now and capture it on your mobile. Call it before you fly, every time you fly. Check the AICs. You can do so online at
www.ais.org.uk. Check the NOTAMs, which are also on the AIS website, or you can call the NOTAM office on 0208 745 3451 or 3450. They're available 24 hours a day, round the calendar - and you get to talk to a real human being, rather than listen to a recording. You can check Pre-Flight Aviation Bulletins (PIBs) on the AIS website, and you can get PIBs through the NATS website
www.nats.co.uk if the AIS website is unavailable for any reason.
Short of having Red One come round to your house every day and brief you over breakfast, it's hard to see what more can be done. Don't expect sympathy."
I find it hard to believe that anyone would disagree with that.