2013-01-14, 17:39
I had a few shows that refused to grab artwork even when it was present at fanart.tv. It turned out to be the tvshow.nfo file was very old and didn't contain the proper show ID for the artwork to be grabbed. Deleting that nfo file and refreshing the show from the internet worked for me. It was only like 10 series and they were the first 10 series I had ever added to XBMC years ago.