LOS ANGELES (thefutoncritic.com) -- CBS has released trailers for some of its new series announced today:

Accidentally On Purpose

ACCIDENTALLY ON PURPOSE is a comedy starring Golden Globe Award winner Jenna Elfman as Billie, a single woman who finds herself 'accidentally' pregnant after a one-night stand with a much younger guy, and decides to keep the baby and the guy.

The Good Wife

THE GOOD WIFE is a drama starring Emmy Award winner Julianna Margulies as a wife and mother who must assume full responsibility for her family and re-enter the workforce after her husband's very public sex and political corruption scandal lands him in jail.

NCIS: Los Angeles

NCIS: LOS ANGELES is a drama about the high stakes world of undercover surveillance at the Office of Special Projects (OSP), a division of NCIS that is charged with apprehending dangerous and elusive criminals that pose a threat to the nation's security.

Three Rivers

THREE RIVERS is a medical drama that goes inside the emotionally complex lives of organ donors, the recipients and the surgeons at the preeminent transplant hospital in the country where every moment counts. However, dealing with donor families in their darkest hour and managing the fears and concerns of apprehensive recipients takes much more than just a sharp scalpel.