NCAA Basketball Tournament (2pm, CBS) - The regional final games from St. Louis and Houston. Full schedule here.

Life (8pm, Discovery) - Mammals are the focus of tonight's 8pm episode of this Oprah Winfrey-narrated series of nature documentaries. Special attention is paid to how mammals care for their young, so Cute Baby Animal Alert. The fish episode airs at 9pm. 

Amazing Race (8pm, CBS) - All I know is Jordan and Jeff are gone, so this show makes me sad now.

Undercover Boss (8pm, CBS) - The CEO of Herschend Family Entertainment (think Dollywood) goes undercover tonight to see how his company really works. 

Breaking Bad (10pm, AMC) - In the second episode of the season, Walt tries hard to reunite with his family, and Jesse, just out of rehab, makes a big purchase. Also, there's an anxiety-inducing sequence involving those scary Mexican killers. If you've got nails, bite 'em. 

Kirstie Alley's Big Life (10pm, A&E) - I like this show a lot more than I expected to. In tonight's back-to-back episodes, Kirstie celebrates a birthday and then tempers flare when the ladies go to a spa. You can catch repeats of last week's two premiere episodes at 5pm today, or following these episodes at 11pm.

The Pacific (9pm, HBO) - The third installment has the 1st Marine Division arriving in Melbourne in January of 1943. Basilone receives The Medal of Honor but is reluctant to embark on his next assignment of selling war bonds back in the U.S. 

NCAA Basketball (WRAL) - It's going on pretty much all day again, folks. Grab your bracket
and tune in. Duke plays California at 5:20pm.

Life (8pm, Discovery) - In the opener of this new 11-part nature series, you'll get extreme stories of survival involving cheetahs, monkeys, and ... flies? A second episode at 9pm features reptils and amphibians. Narrated by Oprah Winfrey. Watch in high def.

Celebrity Apprentice (9pm, NBC) - Tonight's challenge involves building a storefront to relaunch the "Kodak Moments" campaign. One star falls ill and another star falls diva.

Jamie Oliver's Food Revolution (10pm, ABC) - British chef Jamie Oliver is on a quest to slim down America's kids and he starts in Huntington, West Virginia --a place considered the unhealthiest place in America.

Breaking Bad (10pm, AMC) - In the third season opener, Walt deals with the aftermath of last season's plane crash and tries to win back his angry wife. Read more about the new season.

Kirstie Alley's Big Life (10pm, A&E) - Kirstie Alley launches her new reality series in which she once again tries to lose weight while raising her two teens. A second episode follows at 10:30pm.