SHARK TANK: A Portland, Oregon entrepreneur pitches a juice and smoothie cart with blenders powered entirely by pedaling vintage bikes. (Michael Ansell/ABC)

Tonight’s Winter Olympics (NBC at 8 p.m.) coverage has the top U.S. contender in women’s slalom, Mikaela Shiffrin, going for gold, as well as the men’s speedskating competition and finals in short track.

Oprah Winfrey catches up with actress-model-television personality Brooke Burke-Charvet and actors Robby Benson and Jackée Harry on “Oprah: Where Are They Now?” (OWN at 9).

“Shark Tank” (ABC at 9) pitches include a bicycle cart usng pedal power to make juice and smoothies, a spy school run by a former CIA agent, a retired pro wrestler’s yoga program and an Atlanta woman’s Southern breakfast recipes.

Seth Meyers surprises an Army veteran who’s about to get hitched on the first of two new episodes of “Say Yes to the Dress” (TLC at 9). Another bride makes a 4,000-mile trip from Alaska to find the perfect dress.

There’s plenty of trouble on “Gold Rush” (Discovery at 9) as Dustin is back from the mountains, Todd’s claim owner arrives unannounced and Parker perilously tries out a new piece of equipment.

From the Public Theater in New York City, Sting performs songs from his 2013 album and Broadway-bound musical “The Last Ship,” backed by a 14-piece band on “Sting: The Last Ship” (MPT at 9 and WETA at 9:45).

A bride considers wearing a 70-year-old dress that both her mother and grandmother wore on “Something Borrowed, Something New” (TLC at 10), but she also wants to start a tradition of her own.

“Diners, Drive-Ins and Dives” (Food at 10) visits the East Village for a four-star burger and Eureka, Calif., for roasted oysters and wild mushroom cobbler.

RETURNING SHOW’: Season 2 of “Hello Ross” (E! at 10) kicks off with star guest Brandi Glanville from “The Real Housewives of Beverly Hills.”

Justin Timberlake is on “The Tonight Show Starring Jimmy Fallon” (NBC at 11:30). Could that mean another brilliant installment of the History of Rap?

Actress Pauley Perrette and comedian Jeff Caldwell stop by the “Late Show With David Letterman” (CBS at 11:35), with musical guest Lake Street Drive.

Actors Nathan Fillion and Abbie Cornish come to “Jimmy Kimmel Live” (ABC at 11:35), with a musical performance from Naughty Boy featuring Sam Smith.

— Rachel Lubitz