"The Price is Right: Million Dollar Spectacular" (8 p.m., CBS): Luxury automobiles and a chance to

"The Price is Right: Million Dollar Spectacular" (8 p.m., CBS): Luxury automobiles and a chance to spin the Big Wheel for $1 million are up for grabs as Bob Barker and his "beauties" return to prime time for an hourlong special.
"Nova: Jewel of the Earth" (8 p.m., PBS): David Attenborough examines the possibilities of dinosaur DNA, as preserved in fossilized amber. The pieces of golden resin are time capsules, preserving bits of plant and other materials dating back 20 million to 40 million years.
"Gilmore Girls" (8 p.m., WB): The whole Luke-has-a-daughter story line on "Gilmore Girls" has us feeling a bit uneasy about the show these days. Maybe we'll get a break from it with tonight's episode, which has Rory and Logan inviting Lorelai and Luke to spend a weekend with them at Logan's family house on Martha's Vineyard.
"Love Smart" (8 p.m., CBS): Paula Abdul joins Dr. Phil for his latest prime-time special -- a Valentine's Day program called "Love Smart."