“Treme,” which debuts in April, was created by writer/producer David Simon, who also brought “The Wire” to life.

To lend the show an air of authenticity, Simon has cast more than a dozen members of NOLA’s famed music society, as well as some who’ve been touched by it. Artists lending their gravitas to “Treme” include Dr. John, Allen Toussaint, Elvis Costello and .

Simon shared his impressions of Dr. John, aka Mac Rebennack, with New York Times Magazine.

“This guy has the whole history of New Orleans music in his head,” the producer told NYT Magazine, before also revealing Rebennack also has a language all his own.

The director and his crew were filming a conversation between Dr. John and his band, as well as a performance of the standard “My Indian Red” that was intended to be portrayed as a rehearsal for a Katrina benefit concert by the Jazz at Lincoln Center folks.

“Hey, Mac, you gonna call the Indians like you do on the album?,” horn player Ken Williams asked.

“Well, it might cause some serious confusementalism amongst the Lincoln Center set,” Dr. John fired back.

When it came time to write a script for the episode, Simon took a stab at replicating the colorful verbiage.

“We were trying to write in Dr. John’s Unique voice, which is something of a fool’s errand,” he explained. “I wrote the word ‘confusement’ in the script. Mac looked at the script and said, ‘Y’all are trying to do Dr. John.’ And then he said, ‘I can do it your way; it is television so it can’t be accurate’ – he said ‘ac-rit.’ And I said, ‘What the hell. Let it be accurate this one time.’”

Tuesday, March 23
Kristin Chenoweth, The Bird and The Bee – “The Ellen DeGeneres Show”
Chris Franjola, Greg Proops, Christina Pazsitzky – “Chelsea Lately”
Trey Songz – “Lopez Tonight”
Justin Bieber – “Late Show with David Letterman”
Rodrigo y Gabriela – “The Tonight Show with Jay Leno”
Neon Trees – “Jimmy Kimmel Live!”
The Besnard Lakes – “Late Night with Jimmy Fallon”
Ladyhawke – “Last Call with Carson Daly”

Wednesday, March 24
Richard Lewis – “The View”
Carrot Top – “Live with Regis and Kelly” – rerun
Josh Wolf, John Caparulo, Leslie Jones – “Chelsea Lately”
Sinbad – “Lopez Tonight”
Joan Jett and the Blackhearts – “Late Show with David Letterman”
Jamie Cullum – “Jimmy Kimmel Live!”
The Clientele – “Late Night with Jimmy Fallon”
The Raveonettes – “Last Call with Carson Daly”
Mishka – “Late Night with Craig Ferguson”

Thursday, March 25
Michael Feinstein, Dame Edna – “The View”
Cast of “The Beatles Love” – “Live with Regis and Kelly”
Matt Lucas – “The Bonnie Hunt Show”
Brad Wollack, Ross Mathews, Gary Valentine – “Chelsea Lately”
Rodrigo y Gabriela – “Lopez Tonight”
Josh Turner – “Late Show with David Letterman”
Miley Cyrus – “The Tonight Show with Jay Leno”
Lupe Fiasco, The Airborne Toxic Event – “Last Call with Carson Daly”

Friday, March 26
Uncle Kracker – “The Ellen DeGeneres Show” – rerun
Sarah Colonna, Mo Mandel, Rove McManus – “Chelsea Lately” – rerun
Daniel Merriweather – “Late Show with David Letterman” – rerun
Ludacris – “The Tonight Show with Jay Leno”
The Black Lips – “Last Call with Carson Daly”

Saturday, March 27
Ben Harper and Relentless7 – “Austin City Limits” – rerun
Michael Buble – “Saturday Night Live” – rerun