TONIGHT'S MUST-SEE

"Notting Hill" (1999), 7 p.m., ABC. Perfect casting turned a quietly pleasant script into a thoroughly enjoyable romantic comedy. Julia Roberts plays a glamorous movie star, which she is. Hugh Grant plays a good-natured bumbler, which he pretends to be beautifully. Eluding the crowds in London's artsy district, Roberts ducks into Grant's bookstore. He's not the sort of guy who makes things happen. Now a romantic adventure is happening anyway. Richard Curtis has written Grant's better films, "Four Weddings and a Funeral," "Love, Actually" and this one. He also wrote this summer's intriguing HBO film, "The Girl in the Cafe."

OF NOTE

"Into the West" (5 p.m.) and "The Color Purple" (1985, 7 p.m.); TNT. Here's the work of Steven Spielberg, back to back. He was only the producer (not director) of "Into the West," the lush portrait of two cultures on the frontier; this is the last of six two-hour chapters. He directed the brilliant "Color Purple," filling it with rich layers of visual and emotional splendor. It's an uplifting film, despite the brutal vision of the ordeals of black women (Oprah Winfrey, Whoopi Goldberg) in the old South.

"The West Wing," 7 and 8 p.m., NBC. This show usually has long gaps with no reruns and lots of chances for viewers to forget it. Now, however, NBC serves up a couple of repeats. In the first, President Bartlet is trying to hush up details of a military mission that went bad. In the second, Penn and Teller create a controversy by burning an American flag at a birthday party in the White House. Josh is stunned when the president is partially paralyzed on Air Force One.

"Revelations," 9 p.m., NBC. Richard Massey (Bill Pullman) is a professor whose 12-year-old daughter was killed by a zealot named Isaiah Haden (Michael Massee). Massey meets Sister Josepha (Natascha McElhone), who insists that an apocalyptic struggle is near.

"Saturday Night Live," 10:30 p.m., NBC. David Spade hosts with music by Jack Johnson.