I have upgraded to Mavericks and made a couple of iTunes updates around the same time. I had previously rated hundreds, maybe thousands of TV shows and all of those ratings are gone.
I love Apple support, but iTunes’ support is among the worst support organizations I’ve encountered. Their email-based support is of no help, even though the ratings are stored on their servers when iTunes match is used.
Can someone assist? Using a backup library file is not an option as I don’t have one.