Another change is on the horizon, as Carla and Turk prepare to welcome that fan-named baby. Lawrence plans to introduce the new addition as just another factor in the characters' lives rather than having "a thousand episodes about the cute little kid."

"It's not going to be the big sweeps episode: 'Here's the baby!' They'll have a kid somewhere in the early part of next season and they'll evolve as any couple would and deal with the hassle of being a nurse and a doctor and working those crazy hours and having a kid to take care of."

But he also hints at a patented Scrubs spin on the theme. "We certainly aren't always treading new ground, but when we do stuff other sitcoms have done, we try to do it bigger and differently."

DVD and soundtrack release: "We're very nerdy about it."

The season three DVD set will be released on May 9, and the same thought that goes into the Internet extras went into the DVD, which will include commentaries and numerous interviews. "We take great pains in making sure there are extras on the DVD that will make our fans happy," Lawrence declared.

Another Scrubs soundtrack, a follow up to the 2002 release, also will be available May 9, exclusively on iTunes. Music for the show is hand-picked by writers, cast, and crew, who focus on relatively unknown artists with songs that reflect themes of an episode.

"A lot of times when we're outlining a show, we'll do it with a song in mind, because we really try to make the lyrics land with the visuals images that we're showing," he explained. "We're especially careful about this nowadays, because so many shows are doing end-of-show musical montages now. If they don't stand out and they don't seem special and well done, then you seem like you're just one of the crowd."

Zach Braff's college friends Cary Brothers and Joshua Radin feature on the new soundtrack. Lawrence's wife, Christa Miller — who plays Cox's wife, Jordan, and whose real-life pregnancy will contribute to next season being "inundated with babies and baby stuff" — selected Colin Hay and Tammany Hall. "She picks so much of the music for the show that a lot of the writers and actors don't even go to me anymore when they have a song," he laughed. "They hand it to her."

Loyalty versus numbers: "That same core group has followed us from timeslot to timeslot."

Tending to their "nerds" in everything they do, from music selection, to DVD extras, to supplementary Internet materials, to, oh yes, writing the episodes, fits with Lawrence's philosophy on television in general.