Trying to find South Park clip

I figure some of you twerps know South Park.

There was a particular clip I want to show my wife. Its a song that is a parody of an old Rankin and Bass Christmas tune in which Mr Hankey draws a sht smile on a sleeping homeless guy.

good ol' family fun. lol
I think it's this isn't it? really shtty recording (pun intended)
http://www.youtube.com/watch?v=mr9j5JVmgA8&feature=related

Close, but not it. This particular one is from a Christmas special (I think) in which Mr Hankey draws a smile on a sleeping homeless guy's face. The song is a parody of THIS

During the south park version, one of the characters' faces is suddenly drawn like the Rankin Bass character for a second. I found the original, but I want to find the South Park version

Here's the whole episode...

http://www.southparkstudios.com/full-episodes/s03e15-mr-hankeys-christmas-classics

I went through all four acts of that link, Conquest, but I didn't find what I'm looking for.

Well damnit... I have all the episodes on DVD, so I'll look and seeeee..... Waaaaaait!!! I know which one it is!!! It's the one where the kids find Mr. Hankey in the sewer with his family. One of the kids draws the poop-smile on the homeless dude... Lemme find it.

Aaaaaaaand...

BOOM!!