If they are available you will find them on the following channels:
BBC1 - 858
ITV - 870 or 871
You may receive a different region on ITV HD (113) than you do on ITV (103). This is normal, as not all ITV regions are currently available in HD. If you get the wrong region on 113 try 103.
If none of the above provides a solution then there is nothing you can do. The cable network build in the 90s was carried out without any regard to region boundaries thanks to the government body that was in charge of it. Hence some people are stuck with a different region on cable to other platforms.
Cable customer since 1993. Services: FH TV, Sky Sports & Movies (2xV+), Talk Unlim Telco, VIVID 100, Virgin PAYG Mobile