I demand that Iwan Davies may or may not have written...
[snip]
The texts transmitted with the radio stations on Astra 2 is contained in a private stream, I think. I don't have a regular DVB-T STB, so I don't knwo if the same texts are transmitted on Freeview.
They probably are; certainly, the text which is broadcast over DVB-T is the same as on DAB but I'm certain that it's wrapped in MHEG. It couldn't really be otherwise, given that there are also channel logos.