Perhaps your 'Cougar Town' episodes have invalid date/times for recently added in the database. You can delete those from your database in configuration, if you also have them on disk remove them as well. After that, re-run import.
I've done that before. I've moved locations of the file(s), i've deleted the database, i've re-install the entire MP set, i'm even on a completely different HTPC than the first time the problem showed up...