This weekend on TV

Saturday on TV

NFL preseason: Pittsburgh Steelers at New York Giants (5 p.m., NFLN); Detroit Lions at Denver Broncos (6 p.m., Ch. 2); Green Bay Packers at Seattle Seahawks (8 p.m., NFLN)

Persons Unknown (7 p.m., Ch. 5): Kat and Renbe explore an abandoned town.

Being Human (7 p.m., BBC America): Mitchell's motives are revealed.

Sunday on TV

NFL preseason (6 p.m., Ch. 5): Minnesota Vikings at San Francisco 49ers

Rubicon (7 and 10:03 p.m., AMC): Will suspects there's a double agent at API.

Drop Dead Diva (7, 9 and 11 p.m., Lifetime): Jake Pavelka, who was actually a contestant on "The Bachelorette" and "The Bachelor" — and was involved in the mini-scandal when he broke up with his, ahem, "true love" — guest stars as a reality dating show contestant. Sigh.

Leverage (7 and 10 p.m., TNT): Team members realize they each tried to steal the same item on the same night five years earlier.

Mad Men (8, 9:02 and 11 p.m., AMC): Don and Pete butt heads with Roger over an account. John Slattery, who plays Roger, directed this episode.

Army Wives (8 and 10 p.m., Lifetime): Emmalin, Claudia Joy, Pamela and Denise all face life-changing moments in the fourth-season finale.

My Boys (8 p.m., TBS): Brendan decides he's got to move out of PJ's place.

The Gates (9 p.m., Ch. 4): An FBI agent comes to town looking for a criminal.

Dateline (9 p.m., Ch. 5): A look back the first five days after Hurricane Katrina struck.

Ice Road Truckers (10 p.m., Discovery): A rookie driver is distracted for a moment.

True Blood (10 p.m., HBO): Bill tells Sookie about the dangers she's about to face. (TV-MA)

The Glades (11 p.m., A&E): There's a murder in a town full of psychics.

Entourage (11:30 p.m., HBO): The network is interested in Drama's show. (TV-MA)