LOS ANGELES (AP) - They're not a singing group but they play one on TV - and very successfully, we might add. But don't even begin to get into it about whether the Cheetah Girls are friends in real life.

In My Name Is Earl's second seaon, there's an episode incorporating clay animation, an homage to "Cops," a two-parter set in Latin America, and a Tarantino-style whodunit. Also on DVD: season one of The Unit, season three of Numb3rs, season five of Grounded For Life, season nine of The King Of Queens, and What About Brian the complete series.

For the first 20 years of his life, Sam (Bret Harrison, The Loop, Grounded for Life) wondered why his parents went so easy on him. Whether it was school, sports or career choices, Sam's mom (Allison Hossack, "Falcon Beach") and dad (Andrew Airlie, The L Word) always let him get by with the least possible effort.

SANTA MONICA, CA – Dirty tricks and sabotage from an old flame create an atmosphere of fierce paranoia in The Ex landing on DVD August 21, 2007 from The Weinstein Company and Genius Products LLC.

It's TV lite this week for DVD releases. Fans of the 1980s cop show Hill Street Blues can now get their hands on season two. The series was a ground-breaking criminal drama by Steven Bochco that centered on the lives of overworked police officers in an inner-city precinct. Also on DVD: Grounded For Life season two and Big Valley season one.