A lovely piece of kit by all accounts, but I think that UK CAA refuse to approve it for UK use because the "20 second record and playback" feature will also allow recorded RT to be transmitted and the powers that be are rather worried about the safety consequences of undesirables recording genuine RT and re-transmitting it to cause chaos.
Which basically means that you shouldn't actually list it on your annual RT installation license return, I don't think there's actually anything wrong with it apart from that. I don't own one, but if I did suspect that I'd probably feel the urge if I could to disable the offending button.
You can online order them from the US for about US$270.
G