Secret agent men

– CIA in the Crosshairs," a documentary with insight from all 12 living CIA directors. "Homeland" star Mandy Patinkin narrates with the sworn promise not to sing, even under the duress of waterboarding. 8 p.m. Saturday, Showtime

Shop till you drop

Guy Fieri, the most divisive figure in food since Long John Silver, serves as store manager in "Guy's Grocery Games Tournament of Champions," a five-part stunt that tests culinary prowess, innovation and the ability to get through a checkout line in reasonable fashion. Seriously, shoppers. Step it up! 7 p.m. Sunday, Food Network

Abbey road

"A Salute to Downton Abbey" offers a sneak peek at next year's final season of a beloved British export that almost makes up for the Spice Girls. Hugh Bonneville hosts this special, which also looks back at five years of upstairs-downstairs drama. 8 p.m. Sunday, TPT, Ch. 2

Neal Justin