TV Shows keep re-appearing in XBMC

Hi,

I'm fairly new to this but have been trying to sort this out for a few days now with no luck. I am running Frodo on an Apple TV 2.

I have a TV show (Game of Thrones S03) that I've watched. I know want to remove it from the list.

I bring up the list of shows and highlight the show, then choose "Remove from Library" option. This removes it from the list...for a little while.

I have "Cleared" the library as well and restarted XBMC just after clearing the library and also just after removing the TV show from the library.

I have even removed the physical folder containing the TV Show from the external HDD.

After a few minutes, the show turns up again in the TV Show file page. If I go into the show to look at the episodes (which it says there are 66 episodes) they are from other TV shows.

Has anyone else had this? Is there another setting or cache I need to clear?

Cheers
Glenn