Saturday's TV Highlights: HBO has Leo and Kate, together again
SECOND TIME AROUND: “Titanic’s” Leonardo DiCaprio and Kate Winslet reunited for the moody 2008 period drama “Revolutionary Road,” at 9 p.m. on HBO.
Doctor Who: Our hero (David Tennant) faces an old enemy in the ominously titled new episode "The End of Time, Part One" (6 and 9 p.m. BBC America).
The Academy: Orange County Fire: It's graduation day for the newly minted firefighters in this new episode of the documentary series (6 and 9 p.m. Fox Reality).
Mercy: Veronica (Taylor Schilling) is stunned to learn she might be pregnant, while Chloe (Michelle Trachtenberg) uncovers a nasty secret about her boyfriend in this repeat episode of the hospital drama (8 p.m. NBC).
Law & Order: Detectives investigate a death linked to an illegal fight club in this repeat (9 p.m. NBC).
Law & Order: Special Victims Unit: Carol Burnett guest stars in this repeat episode of the police procedural (10 p.m. NBC).
Castle: "Entourage's" Debi Mazar and "Dharma & Greg's" Susan Sullivan guest star in a repeat episode of the comedy-mystery series (10 p.m. ABC).
Frontline: The newsmagazine probes the credit card industry in this repeat (10 p.m. KCET).
Huell's Whale Adventure: The ever-affable Mr. Howser gets up close and personal with some gray whales in this encore special (7 p.m. KCET).
Sherlock Holmes in Dressed to Kill: Turner Classic Movies' marathon of films featuring Sir Arthur Conan Doyle's famed sleuth concludes with this 1946 thriller starring Basil Rathbone (3:30 p.m. TCM).
The Fifth Element: Bruce Willis, Gary Oldman and Milla Jovovich star in director Luc Besson's fashion-forward 1997 sci-fi fantasy; Ian Holm and Chris Rock also star (7:45 p.m. Cinemax).
Shrek 2: Mike Myers and Eddie Murphy are back as the mean green ogre and his donkey pal in this computer-animated 2004 sequel; Cameron Diaz, Julie Andrews, John Cleese and Jennifer Saunders also star (8 p.m. ABC).
Rambo: Sylvester Stallone leaps back into action in this 2008 entry in the series (8 p.m. Showtime).
The Mist: A small town is besieged by otherworldy creatures in director Frank Darabont's eerie 2007 thriller based on the Stephen King terror tale; Thomas Jane and Marcia Gay Harden star (9:30 p.m. Showtime).
The Secret Life of Bees: Queen Latifah, Dakota Fanning and Alicia Keys star in this down-home 2008 drama (10 p.m. Cinemax).
College football: Marshall meets Ohio in the Little Caesars Pizza Bowl (10 a.m. ESPN); North Carolina plays Pittsburgh in the Meineke Car Care Bowl (1:30 p.m. ESPN); and the Trojans take on Boston College in the Emerald Bowl (5 p.m. ESPN)
College basketball: West Virginia visits Seton Hall (12:30 p.m. CBS)
Basketball: The Lakers go up against the Kings (7 p.m. KCAL)
Hockey: The Ducks challenge the San Jose Sharks (7:30 p.m. FS Prime)
Photo: François Duhamel / DreamWorks