[Tristan]

The only thing teletext and widescreen issues have in common is that they both encode information in the "invisible" lines at the top of the screen (although your TV is more likely to pay attention the pin 8 on the scart lead than it is to line 23 of the video signal).

Teletext on digital is an interesting challenge. Teletext signals can't be done as they are on an analogue broadcast -- included by the provider as part of the video signal -- as the MPEG encoding process turns the top lines into garbage. What happens is that when the MPEG encoding takes place, the teletext data is stripped off and sent as a datastream side-by-side with the video. The STB then receives and decodes this data at the same time as the video stream, and reinserts the teletext data in the top couple of dozen lines of the picture. Of course, this has to be tightly synchronised with the original picture, for things like subtitles.

At the moment, how well your box does teletext is a matter of the hardware and software. Presumably L3.2 is better than B3.1, but I don't know for sure. On the Bromley side, I think the older chipset boxes (1000 and 2000) are better than the new ones, but that could be subjective. As always, Spiderplant is the man who knows...