Comedy Central last week said it has greenlighted two new late-night series as companions to “The Daily Show With Jon Stewart” and that it has partnered with comedian Chris Rock on a diversity initiative.

One series, produced by Mr. Stewart’s Busboy Productions, is “The Colbert Report,” featuring “Daily Show” correspondent Stephen Colbert.

“What the ‘Daily Show’ is to the evening news, ‘The Colbert Report’ is to ‘O’Reilly’/ ‘Scarborough’/’Hannity,’ ‘Anderson Cooper,’ et

al. … except Colbert’s show will be

intentionally funny,” the network said.

The other series features Adam Carolla, former star of the channel’s “The Man Show.” The untitled Corolla program, from Jackhole Industries, is expected to be shot in front of a live audience and feature a celebrity guest and a man-on-the-street segment. Both shows are scheduled for the third quarter.

The network hasn’t set premiere dates or time slots for either show, but the programs may take turns occupying the time slot immediately following “The Daily Show.” A “Daily Show” rerun is in that time period now.

Comedy Central also said “Weekends at the D.L.,” starring D.L. Hughley, will air at 11 p.m. Friday through Sunday-the nights “Daily Show” is off-starting July 29.

Late-night is an important time period for Comedy Central.

“Many of our viewers don’t even get home until 11 p.m., making late-night their own version of prime time,” said Doug Herzog, president of Comedy Central, in a statement. “Jon and ‘The Daily Show’ bring them to Comedy Central each night, and we feel that Stephen, Adam and D.L. will give them reason to stay with the channel late into the night as they wind down with some of the most talented comedians working today.”

Comedy Central’s initiative with Mr. Rock calls for a diversity program providing internships for aspiring comedy writers. The internships will run from June 13 to Aug. 5.

“Chris Rock is one of the great comedic voices working today, and we’ve been exploring ways to collaborate with him for some time,” Mr. Herzog said. “We’re thrilled to team up with Chris and have this opportunity to share our collective knowledge of comedy and the industry with these talented students this year and beyond.”

In the first year, the program will take students from East Coast colleges and universities. Comedy Central said it hopes to expand the program to include West Coast schools.