You can't get any better than Barney on the Price is Right. The look on his face when he hits the $1.00 mark on the big wheel is priceless!
"I gaze upon the glory of The Price is Right, and I see the face of America, and it is divine. Plus, you know, hot girls on sports cars."
2. 'Slap Bet'
The introduction of Robin Sparkles. Enough said.
"The 80s didn't come to Canada 'til, like, 1993."
The use of the flashbacks and series of events strung out over time crammed together in one episode occurs frequently on this show. A particular good example of that is in this episode. Sometimes comedy comes in 3's, in this episode it proves it can come in 5's.
"You always pronounce things in the most pretentious way possible, and it makes you sound douchy, and not "douchay."
4. 'How Your Mother Met Me'
Not only does HIMYM do comedy extremely well, they know how to pull off serious and touching episodes too. This one left a lump in my throat. After 9 years of hearing about the woman Ted would marry it was so sweet to finally see how their paths would cross. Everything about the mother character is endearing, and hearing her lovely voice sing La Vie En Rose, was the cherry on top.
"...that performance, that first night I ever heard her sing, that one will always be my favorite."
5. Naked Man
This one always gets me. Adam Paul's character, Mitch, aka Naked Man, really makes this one a classic. I quote a lot of movie and television dialogue in my day to day life, and this episode in particular has a few I use on a regular basis.
"Mr. Wang's is back in business?!"
And an honorable mention of a great HIMYM episode, is 'Swarley' because you almost never see old Swarlz get that upset.