* This morning, a Cary Grant movie marathon on American Movie Classics.

* "I Dare You! The Ultimate Challenge" on WDCA.

* "The Mary Kay Letourneau Story: All-American Girl" on USA Network.

* And a new episode of "NYPD Blue" on WJLA.

Cable Series Debut

Decision 2000. Andrea Mitchell hosts a new half-hour series rounding up the day's campaign-related events (MSNBC at 6 p.m.).

Soap Opera

One Life to Live (CC). Donna Hanover, wife of New York Mayor Rudolph Giuliani, joins the cast as Dr. Elyse Hanson (Channel 7 at 2 p.m.).

Movie Marathon

Celebrating the anniversary of Cary Grant's birth, American Movie Classics airs five consecutive movies starring the debonair English actor beginning with the 1942 film "Once Upon a Honeymoon" at 11 a.m. and concluding at 6:30 p.m. with the 1948 comedy "Every Girl Should Be Married."

Public Broadcasting

Nova: Lost on Everest (CC) chronicles last year's expedition to discover the body of George Mallory where he died in 1924 in an attempt to be the first to scale Mount Everest (Channel 26 at 9).

Frontline: The Killer at Thurston High (CC) profiles Kip Kinkel, the 15-year-old boy who in 1998 killed his parents before going on a shooting rampage at his school in Springfield, Ore. (Channel 26 at 10).

Prime-Time Movie

The Mary Kay Letourneau Story: All-American Girl (2000) (CC). A TV movie the USA Network was destined to air about the 35-year-old married schoolteacher (Penelope Ann Miller) who carried on an affair with her 13-year-old student (Omar Anguiano). Two hours (USA Network at 8).

Series Premiere

I Dare You! The Ultimate Challenge. From the creative team that brought you "World's Most Amazing Videos" and "Breaking the Magician's Codes," a new series showcasing spectacular stunts with color commentary provided by Evel Knievel. One hour (Channel 20 at 8).

Newsmagazines

60 Minutes II (CC). Melissa Etheridge and David Crosby talk about their child (Channel 9 at 9).

Dateline (CC) reports on the language barrier that airline pilots and air traffic controllers have experienced during flights (Channel 4 at 10).

Series

That '70s Show (CC). Red takes the boys hunting and tries to persuade Eric to shoot Bambi (Channel 5 at 8).

Who Wants to Be a Millionaire (CC). Debuting in one of its three regular time slots throughout the week (Channel 7 at 8).

JAG (CC). Mac reluctantly defends a Marine who is appealing the death penalty for the murder of three other Marines (Channel 9 at 8).

Will & Grace (CC) reconsider their living arrangements when Grace contemplates renewing her relationship with her ex-fiance (Channel 4 at 9).

Party of Five (CC). Remember Claudia as just a kid? Well now she's touring colleges, including Yale! (Channel 5 at 9).

Sports Night (CC). The crew experiences a night of calamities when the network broadcasts a major boxing match (Channel 7 at 9:30).

NYPD Blue (CC). Tensions mount between Russell and Kirkendall as they attempt to solve the murder of a prostitute's baby (Channel 7 at 10).

Judging Amy (CC). Amy hires a divorce lawyer to deny her soon-to-be ex-husband custody rights to Lauren (Channel 9 at 10).

CAPTION: Penelope Ann Miller and Omar Anguiano play the schoolteacher and the 13-year-old she took as a lover in "The Mary Kay Letourneau Story."