The programming on the Challenge Channel (before and after the move to the new number) has become zoomed in. The top half of the logo is cut off and I cannot see things I usually see on the bottom.
It is only the Challenge Channel and only the programming, as in not the adverts just the shows. It's annoying because Some of the shows I watch give information pertinent to the programming (clues, etc...) at the bottom.
I don't think this is an issue with my box since all the other channels are fine and the adverts on the Challenge Channel itself are fine.
I can confirm that it happens on the Drama Channel and Drama +1 when trying to watch Classic Eastenders (and I know it does it with The Bill as well). But it only seems to happen on the TiVo box and not the V6 box. It is really getting annoying, been going on for a month or more. So it's clearly a problem at your end, as I know Freeview viewers don't seem to be affected.