April 18: Sunday from 2 to 5 p.m., the “Great Performances at the Met” season continues on Vermont Public Television with “Les Contes d’Hoffmann,” Offenbach’s take on the life and loves of E.T.A. Hoffmann. James Levine conducts, and Joseph Calleja stars in the tour-de-force role, with Anna Netrebko and Alan Held.

At 9 p.m., “Masterpiece Classic” presents the first of a twopart story, “Small Island.” It’s the moving saga of two couples -- one Jamaican, one English -- whose lives intertwine in both friendship and misunderstanding in post-World War II Britain.

At 10:30 p.m., “Out in the Silence” tells the story of a small American town confronting controversy when a same-sex wedding announcement runs in the local paper.

April 19: Monday at 7:30 p.m. on Vermont Public Television’s “Profile,” Fran Stoddard visits with actor Christopher Lloyd (“Taxi,” “Back to the Future”). He will appear as Willy Loman in this summer’s Weston Playhouse production of “Death of a Salesman.” The program will repeat Saturday at 4:30 p.m. and Sunday at 1:30 p.m.

At 8 p.m., “Antiques Roadshow” lands in Phoenix for three episodes. Experts appraise a Chippendale chest and a collection of “Peanuts” artwork.

At 9 p.m., “Earth Days: American Experience” tells the story of nine Americans who propelled the environmental movement from its beginnings in the 1950s to the original Earth Day in 1970.

April 20: Tuesday at 7:30 p.m. on the new season of “VPT’s Outdoor Journal,” stories include a visit to Missisquoi National Wildlife Refuge during Youth Waterfowl Weekend in late September, where youngsters learn duck hunting. At Camp Kehoe on Lake Bomoseen, the Conservation Leaders for Tomorrow program introduces wildlife management students to the culture and concepts of hunting.

At 8 p.m. on “Nova,” Neil deGrasse Tyson tells the story of Pluto, the solar system’s best-loved non-planet.

At 9 p.m. “400 Years of the Telescope” chronicles the sweeping journey from 1609, when Galileo revealed mankind’s place in the galaxy, to today’s quests to discover new worlds.

At 10 p.m., “Frontline: The Dancing Boys of Afghanistan” investigates how, in the midst of war and poverty, an ancient tradition of trading young boys for sexual favors has re-emerged.

April 21: Wednesday at 8 p.m., “Through a Dog’s Eyes” profiles an organization that trains service dogs and the human-canine bond that changes lives.

At 9 p.m., “P.O.V.” presents “Food, Inc.,” a shocking look at America’s food industry. Filmmaker Robert Kenner contends that the health implications of mass production have been largely hidden from consumers. The film will re-air several times, including Sunday at 3 p.m. and Friday at 7 p.m. on VPT’s World Channel.

April 22: Thursday at 8 p.m., this month’s installment of “VPT Public Square” looks at Vermont’s Green-Up Day, which celebrates its 40th anniversary on May 1. Kristin Carlson and guests serve up useful information about how to get involved in the statewide citizen effort.

At 10 p.m., a dramatic film called “A Sense of Wonder” portrays the pioneering environmentalist Rachel Carson in the final year of her life.

April 23: Friday at 10 p.m., “Independent Lens” presents “Dirt! The Movie.” Taking a global perspective, it delves in to the history of dirt, showing how its mistreatment can result in natural disasters and chronicling the growing awareness of its importance as a natural resource.

April 24: Saturday at 10 p.m. on “Austin City Limits,” country music legends Willie Nelson and Asleep at the Wheel celebrate their 2009 release, “Willie and the Wheel.”

At 11 p.m., music icons Kris Kristofferson, Patty Griffin and Randy Owen come to “Legends & Lyrics.”