ITV 2 got lost on mine aswell. Had to resort the channel to fix it. Additionally 106 the freebie channel inserted itself all of its own accord.
On a similar note, do anyones channels go wierd about 1am ? I can be watching uk gold and it'll still stay on 300 but the program will chance to sky one or something
Fixes itself after a few minutes but most channels numbers are totally screwed for that time.