When I get more time I may reinstall RC1 and grab the logs, but there's definitely something borked in there.
Please do when you find the time. Without logging it is very difficult to find out what is wrong.
I've just installed RC1 on a different machine with a Freecom USB DVB-T stick and tested, and the problem is exactly the same. A file gets created, then deleted, and repeat. Logs from quick test attached.
Edit to add:
I've also noticed I can't watch live TV, an unexpected error occurs, but if I open the TV Server config and start timeshifting, I can quite happily watch the resultant stream that is created in the timeshift folder.