AceShowbiz -

CBS has given a vote of confidence to four of its freshmen. The network has announced that it is picking up full seasons of new dramas "Scorpion", "NCIS: New Orleans", "Madam Secretary" and "Stalker", bringing the episode orders from 13 to 22 each.

"These four shows have had an immediate impact on our schedule by improving nights, winning time periods and adding more hours of success across our primetime line up," says CBS Entertainment chairman Nina Tassler.

Based on the life of self-proclaimed genius and computer expert Walter O'Brien, "Scorpion" revolves around a team of brilliant misfits who is recruited by Homeland Security to help solve complex, global problems. It's averaging 15.17 million viewers and a 3.6 rating among adults 18-49.

"NCIS: New Orleans" is the second "NCIS: Naval Criminal Investigative Service" spin-off, with veteran actor Scott Bakula in the lead. Airing after its top-rated mother show, "New Orleans" delivers an average of 18.16 million viewers and a 2.8 in the coveted demo.

"Madam Secretary" stars Tea Leoni as Elizabeth McCord, the newly appointed Secretary of State who drives international diplomacy, battles office politics and circumvents protocol as she negotiates global and domestic issues, both at the White House and at home. Averaging 13.5 million viewers, it's a hit among older viewers with an average age of 63. In the 18-49 demo, the show posts a 1.8 rating.

"Stalker" pairs up Maggie Q and Dylan McDermott as detectives who investigate stalking incidents. The psychological thriller was hit with criticisms even before it premiered, but viewers still like it with an average of 9.5 million people tuning into the episode each week. It draws a 2.1 rating in adults 18-49.