Viewers in search of epic adventure are in luck. Every Saturday night this summer, BBC America offers two hours of battlefield action, exotic travel and the chance for romance and heartbreak with the 1993 series “Sharpe’s Rifles” (8 p.m. today, BBC America).

“Sharpe” stars Sean Bean (“Lord of the Rings”) in the title role of Richard Sharpe, a fictional legend of the Napoleonic wars. The action begins in 1809 when Sharpe is merely a resourceful sergeant. His star begins to rise when he saves the life of the future Duke of Wellington. He’s promoted quickly and put in command of a group of riflemen, sent on secret missions in Spain and experiences other adventures that will keep “Sharpe’s Rifles” firing away for two hours every Saturday night for the next 15 weeks.

¢ John Schneider (“Dukes of Hazzard”) hosts the “20 Greatest Country Comedy Shows” (7 p.m. today, CMT). The list is long and impressive, from “The Andy Griffith Show” to “My Name is Earl.”

No roundup of rural humor is complete without a return to the Hooterville trilogy, “Beverly Hillbillies,” “Green Acres” and “Petticoat Junction.” “Hee Haw” is a shoo-in as well. Interviews include Reba McEntire (“Reba”), Larry the Cable Guy (“Blue Collar TV”), Dixie Carter (“Designing Women”), Vicki Lawrence (“Mama’s Family”), Kathy Najimy (“King of the Hill”), Brett Butler (“Grace Under Fire”) and Jim Nabors (“Gomer Pyle, U.S.M.C.”).

¢ Gary Sinise and Joe Mantegna co-host the “National Memorial Day Concert” (7 p.m. Sunday, PBS). This year’s concert will focus on the sacrifices of the National Guard. The concert also salutes the pilots who flew with the Air Force during World War II, when it was still considered part of the Army.

¢ “Nick News with Linda Ellerbee” (7:30 p.m. Sunday, Nickelodeon) has turned 15 years old. That means that “News,” the most-watched kids’ news show in TV history, is now older than its target audience.

Today’s highlights

¢ Lifetime unspools last summer’s soap “Beach Girls” from 10 a.m. to 4 p.m.

Sunday’s highlights

¢ A Maryland home must come up to code on “Extreme Makeover: Home Edition” (7 p.m., ABC).

¢ Mel Gibson stars in the 2002 Vietnam War epic “We Were Soldiers” (8 p.m., CBS).