As usual, CBS will focus most of its season premieres for fall 2011 in the first official week of the season. The network will also use its two biggest comedies to help launch new shows during premiere week.

"Two and a Half Men" tv series will premiere at 9 pm ET Monday, September 19 for what will probably be tuning a wider audience than usual for shipments show how Charlie Sheen character and we look forward to Ashton Kutcher in the mixture. It will be followed by the new comedy "2 girls Broke," which will air at 09:30 for one week before moving into the place of 8:30 Monday next week. ("How I Met Your Mother" will air two episodes of 19, while the "Mike & Molly" debuted September 26.)

September 22, the episodes back to back "The Big Bang Theory" tv show will the new drama "person of interest", starring Michael Emerson and Jim Caviezel and created by "The Dark Knight" co-wrter Jonah Nolan.

" Our playbook is pretty consistent: wherever and whenever possible, we will introduce a series of successful new shows," says Kelly Kahl, CBS Primetime Senior Executive VP. "We also asked a couple of the strongest series of overtime during the next week to support the new series and to strengthen our business."