Sounds like a bug...Coolman is German AFAIK so reporting it on the right forum will likely cause a headache! You could eMail him direct (his eMail is on the nag screen after you've closed the settings) and ask him to fix for the next release...
In the meantime you might need to downgrade!
Coolman sure is German so I did a bit of digging and found another forum where he has posted a fix. It's basically a new plugin.pyo file. I downloaded the fix and applied it last night and the TV Guide works a charm. I also have the skin and it all seems fine.
I don't know if I should post the file on here without his permission.
Do you think I should?