[Caesium]

Been noticing a few crashes in the PVR Guide with #501 - finally caught it with a debug log on:

http://sprunge.us/Mbgf

I've had this happen a few times but only ever in the PVR Guide. I have a few other earlier crashlogs but debugging wasn't turned on for those, let me know if you'd like them anyway.. I'll keep debugging on to capture any subsequent ones in case they're handy.

I wasn't actually doing anything when these crashes occured, Kodi was just idle in the guide every time.