Saturday on TV

Summer Olympics: NBC (Ch. 5) has coverage from 9 a.m.-5 p.m., 6:30-11 p.m. and 11:30 p.m.-1 a.m.; CNBC from 3-6 p.m. and 10 p.m.- 2:30 a.m.; MSNBC from 7 a.m.-3 p.m. and 3-7 a.m.; USA from 7 a.m.-noon and midnight-7 a.m.

Primeval (7 and 10 p.m., BBC America): Big, spider-like creatures are on the attack.

Eli Stone (9 p.m., Ch. 4): How is Eli going to convince anyone that an earthquake is about to hit San Francisco? (R)

Sunday on TV

Summer Olympics: NBC (Ch. 5) has coverage from 9 a.m.-5 p.m., 6-11 p.m. and 11:35 p.m.-1 a.m.; CNBC from 3-6 p.m. and 10 p.m.-midnight; MSNBC from 7 a.m.-3 p.m. and 3-7 a.m.; and USA from 7 a.m.-noon and midnight-7 a.m.

Little Girl Lost: The Delimar Vera Story (6 and 10 p.m., Lifetime Movie Network): In this fact-based TV movie, a woman (Judy Reyes of Scrubs) is convinced her baby didn't die in a fire — she was abducted.

Masterpiece (8 p.m., Ch. 7): Inspector Lynley investigates schoolgirl kidnappings.

Mad Men (8, 9 and 11 p.m., AMC): Peggy meets the new priest (Colin Hanks).

Generation Kill (10 p.m., HBO): First Recon has to escort civilians fleeing Baghdad.

Law & Order: Criminal Intent (10 p.m., USA): A priest asks Logan to reopen a 16-year-old triple-murder case.

Bob Saget Roast (11 p.m., Comedy Central): Why anyone is bothering to roast the foul-mouthed former star of Full House is a mystery to me. But unless you like jokes about Saget having sex with the then pre-teen Olsen twins, this is not for you. And it's rated TV-MA, the television equivalent of an R.

In Plain Sight (11 p.m., USA): Mary tries to regroup.