The sextuplets celebrate their 13th birthday, outdoor style, with the girls being pampered and the boys roughing it; Kate reflects on past birthdays and looks ahead to having eight teenagers under one roof.

Spring break takes Kate and her eight to Vermont for a week on the slopes with skiing lessons and tubing, but a trip to the hospital makes for a wilder week; Kate agrees to ski, but fear takes over.

The Gosselins invite their friends over for a Halloween party and turn their barn into a haunted house; Kate stresses about party planning, food prep and costumes while trying to deal with guests arriving before everything is ready.

Mady hosts a family game show where Kate and the kids answer questions about past episodes and adventures.

Kate allows Mady and Cara to plan their own sweet 16 party, and tensions run high; Kate finds the moment bittersweet, while the twins are just happy to be with their friends.

Kate and the kids explore the Alabama beach shores during summer vacation, with kayaking, parasailing and a family Segway tour; back at home, the family trains their adorable puppies.

The Gosselins travel to Alabama to go to Space Camp; Kate and the kids explore NASA and become astronauts for the day.

Competition, chaos and family fun abound when Kate and the kids take on archery tag, tubing and new puppies in the Poconos.

The Gosselins enjoy the food and culture of New Orleans while also learning some Southern etiquette along the way.

Kate creates a scavenger hunt for the sextuplets' 12th birthday, and the boys and girls split into teams to find clues.

Kate sits down to watch clips from previous seasons and gives advice to her younger, less experienced self; behind the scenes information and telling all about cringe-worthy moments.

Deana sets Kate up on a blind date, which includes a fancy dinner, good conversation, and an exciting helicopter ride; Mady and Cara help keep the little kids busy at home.

The family prepares for the kids to go back to school; Kate takes the kids shopping and they all work together on one more summer project.

Kate's dream of building a new deck finally comes true, and the family throws a party to celebrate; Kate and the girls enjoy a spa day; the boys learn magic tricks.

The Gosselin's take on landscaping, and after working hard, they take time for lemonade, yoga and an unexpected burial.

Kate takes Mady antiquing to find some vintage deals; the whole family goes to an animal show; the kids compete in a culinary cook-off.

Kate and some of the kids try deep sea fishing; Mady and Cara look up recipes for a healthy dinner; the little kids take their first trip to a water park.

The Gosselins head to Florida for some beach time, and Kate cooks the family a traditional Korean BBQ dinner.

The sextuplets turn 11 and Kate throws a so-called progressive birthday party with roller-skating, pizza, cake, presents, and a sleepover.

The family celebrates Kate's 40th birthday in Cancun, Mexico; sun activities, cultural adventures and a special birthday bash.

The children cook up a secret Mother's Day breakfast for Kate; meanwhile, Kate looks back on her journey through motherhood.

The rarely seen world of a polygamist family is documented in "Sister Wives," which follows Kody Brown, his four wives and their combined 18 children trying to live as a "normal" family in a society that shuns their lifestyle. Three of the wives -- Meri, Janelle and Christine -- have worked for years with Kody to develop a cohesive, loving unit, and their marriages produced 13 kids. Then wife No. 4, Robyn, and her three children were added to the family much later, a development that produced mixed feelings, insecurities and uncertainties. Will it disrupt the balance and change the Browns' lives for the worse?

The Johnstons -- all seven -- of Forsyth, Ga., are the subjects of this reality-documentary series. The brood, TLC says, are "the world's largest known family of achondroplasia dwarfs." Achondroplasia is a genetic disorder of bone growth, but the series demonstrates that size only matters in the amount of love the Johnstons provide. Trent, a grounds supervisor at a local college, and housewife Amber have two biological children -- Jonah and Elizabeth -- while Anna, Alex and Emma were adopted from Russia, Korea and China, respectively. Episodes deal with everything from high-drama soccer tryouts to a disastrous attempt at a "birds and bees" discussion, all framed by the family tackling a massive renovation of their 6,000-square-foot, circa 1891 home.

Matt and Amy Roloff, both 4 feet tall, face a variety of challenges in raising their four children: twins Jeremy and Zach, who is 2-feet shorter than his brother, and younger siblings Molly and Jacob, who like Jeremy are average height. The family's 34-acre Oregon farm serves as part playground and part moneymaker. As the series ages, Matt and Amy deal with personal strife, embrace their kids getting older and leading lives of their own, become grandparents, and attempt to keep Roloff Farms operational.

As a regular guest on "The Oprah Winfrey Show" as well as the host of his own syndicated talker, interior designer Nate Berkus used charm, good looks and professional know-how to establish a solid rapport with viewers. Now he's back on TV, this time in a venture that co-stars his husband -- fellow designer Jeremiah Brent -- and their baby daughter, Poppy. Hourlong episodes follow the couple at work as they rescue homeowners who are trapped in nightmare renovation projects and cannot see an end in sight. Using unique design pieces to add character and a personal touch, Nate and Jeremiah transform each home's layout into a practical yet stylish space. However, the most important job they face is to raise Poppy. The proud parents bring the audience inside their private lives to see how they spend time with "the girl that changed everything."

In the latest installment in the Duggar franchise, the network focuses on the family's older children as they celebrate some of life's milestone moments, including big moves, the realities of growing up, and raising their own families. "19 Kids and Counting" spinoff "Counting On" (formerly "Jill & Jessa: Counting On") tracks Jessa and husband Ben adjusting to life with infant son Spurgeon, while Jill and husband Derick continue their missionary work with baby boy Israel in Central America. Back in Arkansas, siblings Jana, Jinger, Joy Anna, John David, Josiah and Joseph explore their own talents and passions.