Hey guys, it’s Valentine’s Day. Tonight’s dial abounds with romantic programming, so sit back and enjoy. Or at least pretend to, if you know what’s good for you.

• NBC dusts off nuptials from prime-times past with “TV’s Most Memorable Weddings” (7 p.m., NBC). Jane Leeves (“Frasier”) narrates an hourlong clip fest that includes famous and infamous weddings from “Friends,” “Will & Grace,” “Beverly Hills 90210” and the much-anticipated episode of “General Hospital” when Luke and Laura tied the knot before a record 30 million daytime soap viewers.
• Lovers unafraid to mix a little humor with their romance should definitely catch the half-hour cartoon “It’s Valentine’s Day, Johnny Bravo” (8 p.m., Cartoon Network). For the uninitiated, Johnny is an Elvis-inspired, muscle-bound lunk who is clearly in love with himself. His ham-fisted attempts to land a date on Valentine’s Day offer a thorough course on how not to pick up women.
• A frisky princess (Audrey Hepburn) falls for an American reporter in the 1953 favorite “Roman Holiday” (7 p.m., AMC).

l Leonardo DiCaprio and Claire Danes play the Bard’s star-crossed lovers in director Baz Luhrmann’s 1996 update of “William Shakespeare’s ‘Romeo & Juliet'” (7 p.m., FX).

• A runaway bride (Claudette Colbert) hitchhikes her way into a reporter’s heart in Frank Capra’s 1934 comedy “It Happened One Night” (7 p.m., Turner Classic Movies).
• An American agent (Cary Grant) falls for a woman of dubious virtue (Ingrid Bergman) in Hitchcock’s 1946 drama “Notorious” (9 p.m., Turner Classic Movies).
• Pyrotechnics ensue when a Riviera cat burglar (Cary Grant) steals the heart of a rich American (Grace Kelly) in the 1955 bauble “To Catch a Thief” (9:25 p.m., AMC).

Tonight’s other highlights

• Mary Hart glances back at vintage clips from the syndicated series “Entertainment Tonight” on “The Stars’ First Time” (7 p.m., CBS).
• Scheduled on “20/20” (9 p.m., ABC): An interview with Christina Aguilera.