WENH-DT

Test cook Dan Souza makes host Lancaster meat ravioli with quick tomato sauce; tasting expert Jack Bishop challenges host Davison to a taste test of unsweetened chocolate; test cook Keith Dresser shares the secret to perfect torta caprese.

The complex history of Bulgaria, from ancient Thracian tombs to medieval Orthodox Christian monasteries to Soviet monuments.

A spirited competition featuring questions that align with state curriculum standards.

Tour the backyard of a gardening social media star and a horticultural oasis.

A potential rabies outbreak causes panic in Poplar; Trixie cares for a patient experiencing difficult labor; Cyril meets Rosalind's parents.

After a family night at the opera, Jo makes a life-changing discovery while Soames makes a hasty decision.

Preventing sink drain clogs; how to test for lead-based paint; installing granite hillside steps.

Live news program produced out of BBC's Washington, D.C. bureau; host Sumi Somaskanda.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

Cape Cod's Woods Hole Oceanographic Institution's deep-sea research submersible the Alvin; clean-up mission with the Old Ladies Against Underwater Garbage; exploring the clam shacks of Massachusett's North Shore with chef Michael Serpa.

Sustainable cacao chocolate in Costa Rica; Berlin's curry wurst; North Carolina's tomato pie; Melbourne's classic pasta and espresso; New Orleans' coffee blends; Rothenburg's powdered "snowball" pastry; Michigan's cherry ice wine.

Tiffany Studios Turtle-Back diver's lamp circa 1905; John George Brown's Making Houses of Sand Oil circa 1880; a Chinese silk dragon panel circa 1775.

Henry David Thoreau pursues a career as an author, retreating to a cabin in the woods to live simply and write.

Thoreau finds solace in nature and writes two books at Walden Pond; over his two year stay, an expedition to Maine and an act of civil disobediance protesting slavery reshape his idea of freedom.

Christiane Amanpour leads discussions about world issues and interviews with global leaders.

Tiffany Studios Turtle-Back diver's lamp circa 1905; John George Brown's Making Houses of Sand Oil circa 1880; a Chinese silk dragon panel circa 1775.