Comedy Central has an all-day marathon today with Scrubs, and two of my favorite episodes are running back-to-back -- at 8:30 PM and 9 PM Los Angeles time today. The first, "My Way Home," is a very clever, very funny, and extremely touching homage to The Wizard of Oz (directed by series star Zach Braff, who has gone on to have a good feature film directing career), and it's followed by "My Musical," which is...well, a musical, with the music written by the people who did the Tony-winning Best Musical Avenue Q. (Indeed, the guest star in the episode, Stephanie D'Abruzzo got a Tony nomination as Best Lead Actress in a musical for Avenue Q.)
One of my favorite things in the musical episode by the way is absolutely minor, but the fact that they did something so simple shows the thought they put into the episode, and it's how they built in a "first act curtain" and the mid-way "intermission."
In fact, here's the very opening of the episode to show that they didn't just pop in a few random songs, but really went all-out to to a full-fledged musical.
If you have seen the show, this is a great (albeit unorthodox) introduction to it. If you know the show, you'll likely want to see these again. Crank up the DVR.