CSI marathon

Monday at 9 a.m. to 9 p.m. on Spike

The first through fourth seasons of the forensic drama air throughout the day. Spike also offers a glimpse at the fifth season, which it begins airing on Tuesday at 8 p.m.

supernova

Monday at 8 p.m. on Hallmark

Will the sun suddenly roar into an inferno, raining terror down on the universe? That's what Nobel Prize-winning scientist Austin Shepard (Peter Fonda) believes in this drama. Leaving behind data about the supernova for his colleague Christopher Richardson (Luke Perry), Shepard cancels an interview with a reporter (Emma Samms) and heads for an island paradise, presumably out of the sunstorm's path.

But Shepard has more to fear than the end of the Earth: A national intelligence agent is hot on his trail, certain that Shepard has sold classified secrets.

Filled with explosive effects, the three-and-a-half-hour movie was shot in 27 locations, from the Taj Mahal to the St. Louis Archway.

Rome:

Engineering an Empire

Monday at 9 p.m. on History

Ancient Rome may bring to mind the spectacle of chariot races, massive conquering armies and a city forever on fire.

But as this new documentary shows with digital recreations, Rome also was the home of running water and heated pools, along with Julius Caesar's 1,000-foot wooden bridge across the Rhine.

Among other innovations, the Romans had waterproof concrete and -- attention, bargain hunters -- a 160-store shopping mall at Trajan's Roman Forum. Actor-historian Peter Weller narrates.

Speak

Monday at 9 p.m. on Lifetime and Showtime

The trauma of date rape is at the heart of this original move, starring Kristen Stewart as Melinda Sordino, a high school freshman who is forced to have sex at a summertime party. Melinda is unable to confide in her parents or peers. Thanks to a free-spirited art teacher (Steve Zahn), she finds an outlet for expression, discovering that communication is the best way to deal with her experience.

The movie, based on a best-selling novel of the same name, will be simulcast on both networks, along with a public service announcement for a sexual- assault hotline.

history detectives

Monday at 9 p.m. on MPT, 10 p.m. on WETA

Three teenage sleuths are in the spotlight this week, helping the show's experts track the details behind three distinctive objects.

Mariel O'Connell looks into the past of her grandfather, who made ballet shoes for dancers in the 1920s and 1930s, and whose apprentice may have been famed designer Salvatore Capezio.

Sade Salebita investigates the giant zinc lion's claws that may have come from Coney Island's Steeplechase Park. And Graham Sweeney -- of Brookville, Md. -- helps his grandmother learn the truth about a doll that belonged to a slave owned by Robert E. Lee.

american masters: willa cather

The road is all

Wednesday at 9 p.m. on WETA

Willa Cather's spirited novels -- "O Pioneer," "My Antonia," "One of Ours" -- paint vivid pictures of the Nebraska prairies, but the details of her own life remain a mystery. A private person, Cather destroyed much of her correspondence. Yet her independence became an inspiration to women.

This new documentary, filmed in widescreen high definition technology, looks at Cather and her literary work. Marcia Gay Harden provides the voice of Cather.

THE O.C.

Thursday at 8 p.m. on Fox

The seaside soap's third season is marked by the reunion -- at last -- of teenage lovers Summer Roberts (Rachel Bilson) and Seth Cohen (Adam Brody), who come together after a roller-coaster season of complications and plot twists.

fashion rocks

Friday at 9 p.m. on CBS

This second annual celebration of the melding of music and fashion is slated to be taped Thursday at New York's Radio City Music Hall. The concert features performers with ties to fashion such as Gap model Joss Stone, Gwen Stefani, Nelly and Beyonce, all of whom have their own clothing lines; and David Bowie -- husband of supermodel Iman -- who is the current face of designer Tommy Hilfiger's tailored menswear line.

Also scheduled to perform are Alicia Keys, Shakira, Tim McGraw, Duran Duran and the Arcade Fire.

movies that shook the world

Friday at 10 p.m. on AMC

This series spotlights films that stand out for their social impact, beginning with 1987's "Fatal Attraction," starring Michael Douglas and Glenn Close.

That story features a married man whose one-night stand morphs into a nightmare, as the woman invades his life, with violent results.

Douglas and Close are among those who comment on the movie's message and its effect on audiences.

Upcoming installments will showcase "The Graduate" and "Do the Right Thing."

AMERICA'S MOST WANTED:

AMERICA FIGHTS BACK

Saturday at 9 p.m. on Fox

Returning for a new season is host John Walsh, who channeled personal grief and rage over the murder of his young son, Adam, into a crusade for catching criminals. The show, which often focuses on high-profile crimes, invites viewers to provide information. The resulting tips helped the program log its 834th capture last spring.

landslide

Saturday at 9 p.m. on Hallmark

An excavation crew sets off explosive charges, not noticing that a mountain ridge is suddenly riddled with cracks and tremors. The resulting avalanche of earth engulfs Diamondback Mountain, and all who are anywhere near it.

When the rocks, soil and timber have settled, those under the landslide must find their way above ground.

Vincent Spano, Alexandra Paul and Robert Pine star in this two-hour movie.