Sundays at 10 PM ET/PT

Season 3 Mid-Season Trailer

Watch what's to come in the second half of Season 3 of Masters of Sex.

Watch a Scene from Next Week's Episode

Helen and Betty work their way into Masters and Johnson's surrogacy program.

Watch the Season 3 Premiere for Free Now

Masters and Johnson face the press for the first time.

Enter the Fantasy Home Makeover Sweeps

Let SHOWTIME and domino decorate your home in "Masters of Sex" fashion. Enter for a chance to win a $10,000 shopping spree at Mitchell Gold + Bob Williams and more! 100 entrants will also have the chance to win a "Masters of Sex" Gift bag.

Catch Up in 3 Minutes

Watch everything you need to know about Masters of Sex from the first two seasons.

Lizzy Caplan Music Video

As a nod to Masters of Sex moving into the swinging '60s, watch Lizzy Caplan sing "What The World Needs Now."

Watch Past Seasons Now

Get SHOWTIME over the internet and catch up on the critically acclaimed series.

Season 4 Coming in 2016

Stay tuned for a new season of Masters of Sex coming next year.

Go Behind the Scenes of Season 3

It's the "Swinging 60s" and Masters and Johnson are leading the sexual revolution, thanks to their breakthrough study.

Episode Recaps

Read what the critics are saying about the latest episode.

The Swinging '60s

Go behind the scenes with the cast at their '60's mod photo shoot.

Masters of Sex: Season 3 Quotes

Look back on the best quotes from each episode of Masters of Sex Season 3.

Season 2 on DVD

Get your copy of Masters of Sex Season 2.

Masters of Sex T-Shirt

Shop for Masters of Sex tees at the Showtime Store.

Virginia Johnson's Best Quotes

Virginia tells it like it is. Look back on her best quotes from the show.

Sex in the Sixties

Check out these tidbits from the '60s about mini skirts, the Pill, and more.

Style Snapshots

Look back on the best looks from Masters of Sex.

Watch The Affair Now

Watch the series premiere of the Golden Globe winning SHOWTIME Original Series, The Affair.

Season 2 on iTunes

Download Season 2 of Masters of Sex.

Join the Conversation

Check out what other Masters of Sex fans are saying about the show.

About the Series

MASTERS OF SEX is a one-hour drama starring Emmy® and BAFTA Award nominee Michael Sheen and acclaimed actress Lizzy Caplan, who will portray the real-life pioneers of the science of human sexuality, William Masters and Virginia Johnson. The series chronicles the unusual lives, romance, and pop culture trajectory of Masters and Johnson. Their research touched off the sexual revolution and took them from a midwestern teaching hospital in St. Louis to the cover of Time magazine and nearly a dozen appearances on Johnny Carson's couch.

Tonight on Showtime
Ray Donovan: All Must Be Loved
Ray Donovan: Tulip
Masters of Sex: Surrogates
Ray Donovan: Tulip