Sunday at 9 p.m. on History

Tracking mankind's quest to find the origins of the human race, this film examines discoveries that have led to our present understanding of ourselves, incomplete as it may be. Theories that never gained full acceptance in their time are explored, as well as an elaborate hoax that confused scientists for years.



Sunday at 9 p.m. on MPT;

Wednesday at 8 p.m. on WETA

The American tenor trio of Thomas Young, Rodrick Dixon and Victor Trent Cook returns for an evening that showcases their vocal talents across a spectrum of musical genres, from the arias of Verdi and Puccini through rousing gospel and traditional spirituals to jazz scatting and Broadway tunes.

MAN moment machine

Sunday at 11 p.m. on History

Starting with this sneak preview, Hunter Ellis hosts a series that focuses on people who devised or applied new technologies to create milestone events. Each one-hour installment includes archival footage, interviews, reenactments, computer imagery and expert analysis.

The series will air regularly on Tuesdays at 10 p.m.


Sunday at 11 p.m.

on Showtime

In this comedy series, Mary-Louise Parker plays a suburban widow who resorts to selling marijuana-enriched bakery treats to support herself and her

8- and 15-year-old sons.

Elizabeth Perkins plays her friend, an uptight PTA president; Kevin Nealon is her accountant, a city councilman and one of her best customers.

After this sneak preview, episodes will air on Mondays at 10 p.m.


Monday at 8 p.m. on Fox

With gang violence outside the home and civil disorder inside, the Brooks family's challenges are numerous. Their home and their interpersonal relationships have fallen into disrepair. Host Jay McGraw (son of Dr. Phil) and his team of experts help the family get back on track in the first new episode of the unscripted series since November. Another new episode follows at 9 p.m.


Monday at 9 p.m. on ABC Family

Daphne Zuniga, Sarah Foret and Torrey DeVitto star in this series about a divorced mother and her two daughters who leave New Mexico to live in New York, where the youngest girl has won a scholarship to a prestigious private school.

They rent an apartment in Brooklyn but learn it's more difficult to find jobs in the fields they love (fashion design and modeling) than they thought. And the school's privileged teenagers, who call themselves the BPs (for "Beautiful People"), refuse to roll out the welcome wagon for a girl on financial aid, no matter how bright she might be.


Monday at 9 p.m. on NBC

Galen Gering, of NBC's daytime drama "Passions," and former Miss USA Susie Castillo, now an MTV veejay, host the 23rd Miss Teen USA Pageant.

Pop singer Aaron Carter and "American Idol's" Kimberley Locke are slated to perform at the pageant, which airs live from Baton Rouge (La.) River Center Arena.



Tuesday at 8 p.m. on Animal Planet

The wild cats of North America are thought to be as mysterious and misunderstood now as they were when Europeans first came to the New World. This program focuses on the physical characteristics of the continent's cat predators, their hunting methods, survival strategies, social interactions, mating rituals and parenting skills.


Tuesday at 10 p.m. on Discovery

Former Royal Marine officer and expedition leader Bruce Parry sheds the trappings of modern life to experience the world's last untouched civilizations.

In the premiere episode of this series, Parry travels to Ethiopia to live among the Suri people, for whom violence is an everyday occurrence. Bruce learns the Suri way of life by taking part in their customs, including drinking blood.


Saturday at 8 p.m. on Animal Planet

Swingley, a baby ringed seal, is a sick and starving orphan when he arrives at the Alaska SeaLife Center in Seward. But he's lucky: This is a place where wildlife specialists will work around the clock to nurse him back to health.

The caretakers try to limit Swingley's contact with humans so the seal can develop the survival skills he would have learned from his mother before he is released back into the wild.

-- Compiled and written by the TV Week staff