OK it's going to be more strange now i see a totally different channel on this service id. It seems that the cable provider is doing some crazy stuff... :-(
Please monitor this issue further - I had a failed recording on ProSieben (DVB-S - Astra 19.2°E) which logged "serviceid mismatch" as well.
The TV service infinitely attempted to start the recording and failed again until the broadcast was over. In the end only the XML file was written to disk.
This has been on a clean TV database scanned with vanilla 1.0.
rtv
sorry that i've not answered to this thread. This was definitly a "Kabel Deutschland" problem they've changed the serviceids of the complete ZDF Group to other ids. Now everything is working again.