CNN continues to invest in its original series programming, announcing three renewals Thursday.

Also read: CNN’s Jeff Zucker Says His Network Might Make Scripted Films

“Anthony Bourdain: Parts Unknown” has been renewed for a sixth season in 2015; “This is Life” with Lisa Ling had a second season green-lit and “Somebody’s Gotta Do It” with Mike Rowe has been given a second season.

Also read: CNN Launching Lisa Ling Documentary Series 'This Is Life'

Ling and Rowe’s programs are still airing episodes from their respective first seasons, with Ling’s last episode airing Nov. 16 and Rowe’s on Dec. 10.

Also read: Mike Rowe's 'Somebody's Gotta Do It' Scores Best CNN Original Series Demo Premiere Ever

Rowe’s debut on Sept. 9 scored the highest 25-54 demo rating in CNN original series history. Ling has also had success, often ranking first in the demo on Sunday nights.

Other CNN original series that aired this year were “The Hunt” with John Walsh and  the mini-series “The Sixties.”