PBS's premier science-documentary series, which has won six Peabody Awards and more than 20 Emmys (four in 2002 alone) since its 1974 debut. `Nova' clearly, and often engagingly, `demystifies' a vast range of science, technology and history topics---past and present---and doesn't neglect the human aspect of the story. Its many memorable shows include 1983's `The Miracle of Life,' about the conception and development of a fetus (which was remade in 2001); and 2002's `Why the Towers Fell.'

pbs | TV-G

Dr. Hobson finds herself caught up in a decades-old vendetta when one of her university friends is murdered, and another young student is killed in the house Hobson and her friends shared years ago.

pbs | TV-PG

Part 2 of 2. A 13-year-old girl vanishes from an English village, and the mystery deepens 40 years later when a journalist arrives to make a film about it. What she finds shatters the lives of all involved.

pbs | TV-14

PBS's longest running (and most honored) dramatic series is an Anglophile's delight, featuring British adaptations of literary classics and original works. The first `Masterpiece' was `The First Churchills,' and since then it has won nine Peabodys and 29 Emmys (beginning with Susan Hampshire's Best Actress award for `Churchills'). Its many memorable productions include `Upstairs, Downstairs,' `I, Claudius,' 'The Jewel in the Crown,' `House of Cards,' `Poldark' and `Prime Suspect.'

pbs | TV-PG

Giorgio Vasari writes a book to define the Renaissance; Galileo pursues his scientific studies with the support of the Medici family.

pbs | TV-G

Using scientific accounts, diaries, photographs and letters, this film reveals how poor planning, personality clashes, questionable decisions and pure bad luck conspired to turn a noble scientific mission into a human tragedy.

pbs | TV-PG

The journey home, and the reunions at the pier.

pbs | TV-14

The film traces the story of the Chicago-born astronomer George Ellery Hale as he struggles to build the greatest telescopes of the 20th century.

pbs | TV-G

A newsmagazine that explores science-related matters.

pbs | TV-PG

Exploring the stories behind artifacts and historical curiosities, with comments from academics and appraisers.

pbs | TV-PG

The end of the year means facing final exams, finding dates for the dance, and saying good-bye to Degrassi.

pbs | PG

Despite desparate attempts to keep the old gang together, Joey, Snake, Wheels, Caitlin, Lucy, Spike and others head in different directions as temperatures rise the summer after graduation.

pbs | PG

Witnesses to a Secret War tells the stories of three generations of Hmong refugees as they struggle with their personal and political legacies.

pbs | NR

The slow food approach to cuisine includes appreciating natural resources and completely enjoying them.

pbs | G

How is Hollywood creating "perfect water?"

pbs | TV-PG

Emotions run high as the circus season winds down.

pbs | TV-PG

We'll meet three robots - including a future member of an astronaut team - that are trying to better understand us.

pbs | TV-G

PBS's primary public-affairs documentary series, `Frontline' focuses on one (usually timely) topic each program. Overseen since its inception by executive producer David Fanning, it has been honored regularly over the years, winning 34 DuPont-Columbia awards, 12 Peabody awards and 29 Emmys. In 2001, `Frontline' launched `Frontline/World,' an offshoot devoted to foreign affairs featuring work by young filmmakers.

pbs | TV-PG

Ed Mazria's answer.

pbs | NR

A three-part exploration of the emotional aspects of life and the quest for meaning and happiness, featuring scientific research, personal stories of ordinary people and comments from celebrities.

pbs | TV-PG

Contemporary artists address contradiction, ambiguity, and truth.

pbs | NR

No Spanish wine is more famous than Rioja, and Andrés starts with a quick tapa of apples in red wine syrup.

pbs | TV-G