Ah, didn't know that! Must check out 'The Bug'.
Meanwhile....
...have emailed the BBC for a technical response....
....will report back....
For "the bug", check out Amazon marketplace, (go to "ELECTRONICS & PHOTO" and search for "pure bug". Looks like there are only a few available now, and the prices are climbing. Both I got were "factory reconditioned" and have been fine. The first I got has been running day in, day out, for over 2 years now, without problem. Make sure you update the firmware, whichever you get. The main advantage of the "bug too" is the separate standby/on switch. On "the bug" you have to use the central 'joy button', which can be a bit fiddly (oo-er).
Both versions use essentially the same firmware, and once that is updated "the bug" has the same EPG facilities as the "bug too". Of what's on offer there at the moment, I would go for the factory reconditioned "the bug" at around £45 + p&p.