Prime-Time Highlights

Pioneers of Television: Standup to Sitcom
The Season 4 premiere looks at stand-up comics who transitioned to sitcoms. Included: remarks from Jerry Seinfeld, Roseanne Barr, Tim Allen, Ray Romano and Bob Newhart; clips from "Seinfeld," "Home Improvement," "Everybody Loves Raymond" and "Roseanne." Tuesday, April 15 at 8:00 p.m.

Nature: Touching the Wild
Naturalist Joe Hutto chronicles his experiences with a herd of wild mule deer in Wyoming's Wind River Mountains. It takes two years for him to gain their trust and acceptance, but once he does it's as if he's one of them. Wednesday, April 16 at 8:00 p.m.

Ocean Frontiers: The Dawn of a New Era in Ocean Stewardship
A look at efforts to improve the waters off America's coasts. Included: the busy shipping lanes of Boston Harbor; a small fishing community in the Pacific Northwest; the coral reefs in the Florida Keys; and a seafood nursery in the Mississippi Delta. Thursday, April 17 at 9:00 p.m.

Peter Pan From the Milwaukee Ballet
The Milwaukee Ballet performs an adaptation of J.M. Barrie's "Peter Pan," starring Marc Petrocci as Pan and Valerie Harmon as Wendy. Choreographed by Milwaukee Ballet artistic director Michael Pink, it features a score by composer Philip Feeney. Friday, April 18 at 9:00 p.m.

Doc Martin: Nobody Likes Me
Martin takes James to a playgroup; and Ruth has problems with a new neighbor. Saturday, April 19 at 9:00 p.m.

Call the Midwife
Jenny and Sister Winifred help an agoraphobic who hasn't left her flat in 12 years; Alec invites Jenny to Brighton for the weekend; and Shelagh helps bring back to life a local choir. Sunday, April 20 at 8:00 p.m.

Masterpiece Classic: Mr. Selfridge: Season 2, Part Four
As "Mr. Selfridge" continues, Miss Mardle takes in a handsome refugee; Thackeray spies on Leclair; and Harry takes on Loxley in a card game. Sunday, April 20 at 9:00 p.m.

Death Camp Treblinka: Survivor Stories
The story of Treblinka, the extermination camp created by the Nazis in Poland where an estimated 900,000 Jews were sent to their deaths between 1942 and 1943. Included: the memories of two survivors. Monday, April 21 at 8:58 p.m.

Pioneers of Television: Doctors and Nurses
TV's fascination with doctors and nurses is explored. Included: Noah Wyle, Anthony Edwards, Gloria Reuben and Eriq LaSalle on "ER"; Howie Mandel, Ed Begley Jr. and Christina Pickles on "St. Elsewhere." Also: Chad Everett recalls "Medical Center." Tuesday, April 22 at 8:00 p.m.

NOVA–Inside Animal Minds: Who's the Smartest?
An examination of animal intelligence. Scientists have observed that many clever creatures live in complex social groups, including apes, dolphins and elephants. Wednesday, April 23 at 9:00 p.m.

Great Aquarium Treasure Hunt
A treasure hunt is held in Baltimore's National Aquarium. Thursday, April 24 at 9:00 p.m.

The This Old House Hour
Arlington Italianate Project 2014: Sod, Garbage Disposers, Crown Molding–A truckload of fresh sod is rolled out; a replica ceiling medallion made with a 3D printer and a custom copper vent hood are installed; a garbage disposer is selected; a pedestal sink is installed in the powder room. Friday, April 25 at 8:30 p.m.

Call the Midwife
The midwives help a woman with Down syndrome who's six months pregnant; Dr. Turner recommends that Shelagh oversee Nonnatus House while an exhausted Sister Julienne recuperates; and a new, no-nonsense nurse signs on. Sunday, April 27 at 8:00 p.m.

Masterpiece Classic: Mr. Selfridge: Season 2, Part Five
"Mr. Selfridge" continues: Harry helps with the war effort; Loxley's business empire grows; Leclair faces major trouble; and Victor and Agnes make plans. Sunday, April 27 at 9:00 p.m.

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