Sneak peek at fall TV on CBS

Actors Ted Danson, left, and Marg Helgenberger speak during the "CSI: Crime Scene Investigation" panel during the CBS portion of the 2011 Summer TCA Tour on Aug. 3, 2011, in Beverly Hills, Calif.

Actress Marg Helgenberger, center, speaks as actor Ted Danson, left, and actor George Eads speak during a panel at the The Television Critics Association 2011 Summer Press Tour in Beverly Hills, Calif. on Aug. 3, 2011. Danson, Helgenberger, and Eads star in the television series "CSI: Crime Scene Investigation" on CBS.

Actor Ted Danson speaks during a panel at the The Television Critics Association 2011 Summer Press Tour in Beverly Hills, Calif. on Aug. 3, 2011. Danson stars in the television series "CSI: Crime Scene Investigation" on CBS.

Actress Marg Helgenberger speaks during the "CSI: Crime Scene Investigation" panel during the CBS portion of the 2011 Summer TCA Tour on Aug. 3, 2011, in Beverly Hills, Calif.

"CSI: Crime Scene Investigation" will return on Sept. 21, 2011, on CBS. Actor Ted Danson, center, has joined the series for its 12th season, which will air Wednesdays at 10 p.m. ET/PT.

Actress Poppy Montgomery, right, and actor Dylan Walsh speak during a panel at the The Television Critics Association 2011 Summer Press Tour in Beverly Hills, Calif. on Aug. 3, 2011. Montgomery and Walsh star in the television series "Unforgettable" on CBS.

Actor Dylan Walsh speaks during a panel at the The Television Critics Association 2011 Summer Press Tour in Beverly Hills, Calif., on Aug. 3, 2011. Walsh stars in the television series "Unforgettable" on CBS.

Actress Poppy Montgomery speaks during a panel at the The Television Critics Association 2011 Summer Press Tour in Beverly Hills, Calif., on Aug. 3, 2011. Montgomery stars in the television series "Unforgettable" on CBS.

"Unforgettable" stars Poppy Montgomery as a former detective with a perfect memory. The drama will air Thursdays at 10 p.m. ET/PT on CBS.

Actresses Kat Dennings, left, and Beth Behrs speak during the "2 Broke Girls" panel during the CBS portion of the 2011 Summer TCA Tour held at the Beverly Hilton Hotel on Aug. 3, 2011, in Beverly Hills, Calif.

Executive consultant Whitney Cummings, executive producer Michael Patrick King and actresses Kat Dennings and Beth Behrs speak during the "2 Broke Girls" panel during the CBS portion of the 2011 Summer TCA Tour on Aug. 3, 2011, in Beverly Hills, Calif.

Actress Kat Dennings speaks during the "2 Broke Girls" panel during the CBS portion of the 2011 Summer TCA Tour on Aug. 3, 2011, in Beverly Hills, Calif.

Actress Beth Behrs speaks during the "2 Broke Girls" panel during the CBS portion of the 2011 Summer TCA Tour on Aug. 3, 2011, in Beverly Hills, Calif.

Executive consultant Whitney Cummings speaks during the "2 Broke Girls" panel during the CBS portion of the 2011 Summer TCA Tour on Aug. 3, 2011, in Beverly Hills, Calif.

Kat Dennings, left, and Beth Behrs star as down-on-their-luck waitresses - one always poor, another recently bankrupt - on CBS' "2 Broke Girls." The sitcom will air Mondays at 8:30 p.m. ET/PT.

Actors Kevin Dillon, left, and Dave Foley speak during the "How To Be A Gentleman" panel during the CBS portion of the 2011 Summer TCA Tour on Aug. 3, 2011, in Beverly Hills, Calif.

Actress Mary Lynn Rajskub speaks during the "How To Be A Gentleman" panel during the CBS portion of the 2011 Summer TCA Tour on Aug. 3, 2011, in Beverly Hills, Calif.

From left, creator/executive producer David Hornsby, executive producer Adam Chase and actor Kevin Dillon speak during the "How To Be A Gentleman" panel during the CBS portion of the 2011 Summer TCA Tour on Aug. 3, 2011, in Beverly Hills, Calif.

From left, actors Rhys Darby and Nancy Lenehan, creator/executive producer David Hornsby, executive producer Adam Chase and actors Kevin Dillon, Dave Foley and Mary Lynn Rajskub speak during the "How To Be A Gentleman" panel during the CBS portion of the 2011 Summer TCA Tour on Aug. 3, 2011, in Beverly Hills, Calif.

Kevin Dillon, left, and David Hornsby in a scene from CBS' "How To Be A Gentleman." The sitcom, about the unlikely friendship between a traditional, uptight columnist and an unrefined personal trainer, will air on Thursdays at 8:30 p.m. ET/PT.

From left, actors Taraji P. Henson, Michael Emerson and Jim Caviezel and executive producer Jonathan Nolan speak during the "Person of Interest" panel during the CBS portion of the 2011 Summer TCA Tour on Aug. 3, 2011, in Beverly Hills, Calif.

Executive producer Jonathan Nolan speaks during the "Person of Interest" panel during the CBS portion of the 2011 Summer TCA Tour on Aug. 3, 2011, in Beverly Hills, Calif.

Michael Emerson, left, and James Caviezel in a scene from CBS' "Person of Interest." The drama, about a former CIA agent who teams up with a mysterious billionaire to prevent violent crimes, will premiere on Sept. 22 at 9 p.m. ET/PT.

Actors Jennifer Ehle, left, and Patrick Wilson speak during the "A Gifted Man" panel during the CBS portion of the 2011 Summer TCA Tour on Aug. 3, 2011, in Beverly Hills, Calif.

From left, executive producer Neal Baer, actors Jennifer Ehle, Patrick Wilson and Margo Martindale and executive producer Sarah Tiberman speak during the "A Gifted Man" panel during the CBS portion of the 2011 Summer TCA Tour on Aug. 3, 2011, in Beverly Hills, Calif.

Actors Patrick Wilson, left, and Margo Martindale speak during the "A Gifted Man" panel during the CBS portion of the 2011 Summer TCA Tour on Aug. 3, 2011, in Beverly Hills, Calif.

Patrick Wilson and Jennifer Ehle in a scene from CBS' "A Gifted Man." The drama, about a charismatic, ultra-motivated surgeon whose deceased ex-wife begins teaching him the meaning of life, premieres Sept. 23 at 8 p.m. ET/PT.

From left, CBS News Chairman and "60 Minutes" Executive Producer Jeff Fager, "CBS Evening News" anchor and managing editor Scott Pelley and CBS News President David Rhodes answer questions during the "CBS Evening News" presentation session at the TCA Summer Press Tour, Aug. 3, 2011, in Los Angeles.

CBS News Chairman and "60 Minutes" Executive Producer Jeff Fager and "CBS Evening News" Anchor and Managing Editor Scott Pelley speak during the "CBS Evening News" panel during the CBS portion of the 2011 Summer TCA Tour on Aug. 3, 2011, in Beverly Hills, Calif.