Television Program Highlights
The Bletchley Circle
Season 2: Blood on Their Hands
Sunday, April 13, 10:00 pm ET
Sunday, April 20, 10:00 pm ET

Alice Merren is in prison awaiting trial for the murder of her former Bletchley Park colleague. Jean, believing Alice is covering for someone, begins to reunite the circle to help establish the innocence of one of their own. The investigation leads to a young woman who seems to have had a relationship with the deceased and in whose home they find documents suggesting a military cover-up of a chemical spill. The women use the skills honed at Bletchley Park — and take dangerous chances — to try to exonerate Alice.

Call the Midwife
Season 3: Episode 4
Sunday, April 20, 8:00 pm ET

Jenny’s patient Leah is struggling to cope with her mother’s agoraphobia, as well as her own pregnancy. When her husband is offered a new job and home, Leah knows she can’t leave her mother behind after all they went through to survive the Holocaust. With the arrival of new life, Mrs. Rubin seems reborn, too; with great effort and help from Sister Winifred, she manages to step outside for the first time in 12 years. Alec asks Jenny to go to Brighton for the weekend, but she questions his intentions. Later, he’s seriously injured in an accident on the building site that he’s been overseeing. When she learns that he has taken a turn for the worse, Jenny leaves immediately for the hospital. Shelagh takes over the local choir and helps bring it back to life.

Masterpiece Classic
Mr. Selfridge, Season 2: Part Four
Sunday, April 20, 9:00 pm ET

Miss Mardle houses a handsome refugee, Thackeray spies on Leclair and Harry has a showdown at cards with Loxley.

Nature
Snow Monkeys
Wednesday, April 23, 8:00 pm ET

In the frigid valleys of Japan’s Shiga Highlands, a troop of snow monkeys functions in a complex society of rank and privilege where each knows his and her place. Their leader is still new to the job and something of a solitary grouch. One innocent little monkey, unaware of his own low status, reaches out to this lonely leader and they form a rare and remarkable bond that alters both their lives. Changing seasons bring new babies, family disagreements and tragedies. Mating season brings competition for females as the days grow shorter and colder in the rush to winter. With their now confident leader to guide them and their families to shelter and care for them, these snow monkeys are ready to face the world.

NOVA
Inside Animal Minds: Who's the Smartest?
Wednesday, April 23, 9:00 pm ET

What makes an animal smart? Many scientists believe the secret lies in relationships. Throughout the animal kingdom, some of the cleverest creatures — including humans — seem to be those who live in complex social groups, like dolphins, elephants and apes. Could the skills required to keep track of friend and foe make animals smarter? To find out, NOVA goes inside the social lives of some of the smartest animals on the planet.

Call the Midwife
Season 3: Episode 5
Sunday, April 27, 8:00 pm ET

The midwives discover that a young Down Syndrome woman is six months pregnant, leading to difficult confessions and decisions. Dr. Turner suggests that Shelagh take over the running of Nonnatus House to allow an exhausted Sister Julienne to recuperate. This includes overseeing the arrangements for Sister Evangelina’s surprise jubilee celebrations. But the atmosphere turns sour when a lemon meringue pie goes missing. Patsy, a new nurse, arrives at Nonnatus House. Her no nonsense, hard-working attitude and sense of humor mean she’s an immediate hit with the nuns and midwives.

Masterpiece Classic
Mr. Selfridge, Season 2: Part Five
Sunday, April 27, 9:00 pm ET

Loxley’s corrupt empire expands, Leclair lands in deep trouble, Victor and Agnes make plans and Harry joins the war effort.

The Bletchley Circle
Season 2: Uncustomed Goods
Sunday, April 27, 10:00 pm ET
Sunday, May 4, 10:00 pm ET

Millie’s import/export sideline leads to her abduction by a crime ring involved in trading perfume, cigarettes and stockings — and in human trafficking. After her release, Millie is determined to help those sold into prostitution. Millie, Jean, Lucy and Alice decide to tip off Customs and Excise to intercept a contraband shipment and catch the traffickers.

Antiques Roadshow
Anaheim (Hour Two)
Monday, April 28, 8:00 pm ET

ANTIQUES ROADSHOW travels to Anaheim, California, where host Mark L. Walberg and appraiser Richard Johnston head to Rickenbacker International Corporation to discuss vintage electric guitars. Highlights include two pairs of performance shoes that belonged to “The Beverly Hillbillies” star Buddy Ebsen; a jade jewelry collection that includes a necklace, ring and earrings, appraised for $30,000 to $36,000; and an oil painting titled Sacré-Couer et Moulin, by French artist Maurice Utrillo, valued at $80,000 to $120,000.