Funny Lines
Ted, I'm canadian. I don't need a coat.
I wish I could see her naked, I wish I could see her naked, I wish I could see her naked and down on all fours.
We invented Trivial Pursuit!
Sorry about that! Have a doughnut, on the hoose!
Pulling down her pants, yanking off my own. Underneath the miseltoe I'll make your sister moan! Ohhhhh =D

Robin
I prefered how she was written in this episode. No crazy hornyness, no bad lines, just good old Robin acting like a dude and being proud of being Canadian.

What I Liked
Marshall singing Let's Go To The Mall =D
Barney NOT sleeping with Ted's sister.
Barney's song (Plus the dancing to the Hanukkah song)
Barney's chair.

What I disliked
Ted's sister. I don't know why but the whole you don't trust me so I will fake sleep with barney? Meh.
I also thought the whole Ted/Heather/Barney/Lily parts were kind of blah. More of a sidestory than the main one and yet the side story was Robin/Marshall.

I had a rubbish quality version of it so I am now off to find a good version and watch it again =D

P.s. Where did Lily not being able to keep secrets around christmas come from? She managed fine before. It's also slightly odd =D