Best Bets on TV Tonight

Serial killer Ted Bundy (Cary Elwes) helps two investigators (Sam Jaeger and Bruce Greenwood) investigate the nation's worst case of serial killings, the Green River murders in the Seattle area. "The Riverman" (8 p.m., A & amp;E) is based on a book about the real-life collaboration that inspired "The Silence of the Lambs."
"Wedding Daze" (8 p.m., Hallmark) tells the story of two middle-aged empty nesters who are deciding how to fill those vacant rooms when their three daughters return home. The ladies fall in love and dear old dad must help plan -- and finance -- three weddings scheduled for the same day.
The "Modern Marvels" series looks at obstacles that must be overcome in constructing major office buildings in "Building a Skyscraper" (9 p.m., History Channel). Although the example followed over two years is only 13 stories high, it required the same techniques used in much taller structures. Concludes at the same time Tuesday.
MTV News correspondent Gideon Yago tags along with President Bush and Democratic challenger John Kerry as they speak to young voters during election campaigns in "Choose or Lose" (10:30 p.m., MTV).
A hit in Britain, "How Clean is Your House?" (11 p.m., Lifetime) features Aggie MacKenzie and Kim Woodburn as they descend upon dusty domains and turn them into pristine palaces in just two days. The women offer practical advice for viewers, such as using white vinegar to combat lime deposits.