Chris Lloyd has produced a WAP interface to the TV listings which are hosted here.
The current version is 188.8.131.52 and can be accessed in your WAP-compatible mobile phone by opening:
Alternatively, you can try it in your current browser courtesy of TTemulator:
There have been reports that it doesn't work in some phones, if you are able to add evidence either way (including phone model and service provider) that'd be a great help. Alternatively, if you have any other questions or comments, please raise them on the mailing list.