I tried to find the perfect clip or promo to show for Louie, but instead, I realized that the opening titles encapsulates the show better than any one clip can:
Louie is the now Emmy nominated flagship for FX's Summer Comedy block. A semi-autobiographical show about the life of comedian Louis CK, Louie has deftly subverted genre norms, television tropes and every other academic examination of the medium to create what I can only describe as the most original and inventive show since the original The Office.
Where Louie shines is in its level of absurd reality, lacking any kind of distinctive music cues or sound effects stings, leaving the viewer completely out to sea in terms of expected emotional reaction. Never quite sure whether you're supposed to be laughing with the show, laughing at the show, or just flat out crying, Louie brings the awkwardness of Larry David's best work, turns down the zaniness, and adds a bit of the cynical sadness that made Gervais and Merchant such superstars.
The Onion AV club has really in depth reviews of every episode thus far, which can be found here:
A great article in Time about CK and the show:
Here is a deleted scene from the Season 1 DVD posted by Louis CK (NSFW):
And here is a great promo for season 2 posted on his youtube channel:
Hulu currently has the last 2 episodes of season 1 and the first episode of season 2 streaming. Though each episode is independent, there is a subtle arc that occurs throughout the show, so I'd recommend watching it all the way through. It used to be streaming on Netflix, but isn't anymore. Sad.
Either way, you can watch Louie Thursdays at 10:30pm on FX, and many nights (I'll edit once I can find this info, or PM me if you can) during FX's "Fully Baked" in rerun.