Just took a look at S4C gardening programme Byw yn yr Ardd which covered the RHS show. Good god, we're on film! Luckily not for long though! (see 1.30 mins and 13.49 mins in. Press 's' for subtitles)
Luckily they didn't critique our garden, because they were so rude about the others! Even the best in show got a slating!