I should have known that any episode of Glee directed by Joss Whedon would be fantastic - and bittersweet. From Rachel's search for her mom (I KNEW Jesse St. James was up to no good!) to Artie's dream of being a dancer, I hoped right along with the characters and then felt their pain even though I could see how it was going to turn out coming from a mile away. I guess that's what good directing can lead too :)
I think my favorite bit was actually the Safety Dance flash mob scene from Artie's daydream. I've always had a fondness for that song, cheesy though it may be - it was the very first music video that I ever saw.
Be sure to check out Glee on Hulu if you haven't already seen it! What was your favorite part?