Could it be that we get two episodes in December???
While there is no date yet for episode 9 officially given, episode 10 (like last year) is this year's Christmas episode. So if we get that in December, it must mean 9 as well, correct? It is possible they could just not air what's scheduled to be the 9th episode until January (therefore switching ep. #'s with the x-mas one), so we'll see.
Also, as for the Christmas one:
Season 3. Episode 10.
Title: Christmas Joy
Synopsis: Gus's family, including his sister Joy, comes to town for the holidays. The Santa from the local mall was arrested and put in jail and when a little girl comes into Psych and asks them to help get Santa out of jail, Joy convinces them they need to help.
Airdate: December 2008