When two single girls, Janet and Chrissy, need a roommate to share their Santa Monica apartment, they decide to offer a room to Jack, a man they find passed out in the bathtub after the going-away party for their last roommate. However, hijinks ensure when Jack must pretend to be gay in order to throw off the scent of the trio's conservative landlady.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | A Man About the House | 1977-03-15 | 30 min |
| Season 1 | Episode 2 | And Mother Makes Four | 1977-03-24 | 30 min |
| Season 1 | Episode 3 | Roper's Niece | 1977-03-31 | 30 min |
| Season 1 | Episode 4 | No Children, No Pets | 1977-04-07 | 30 min |
| Season 1 | Episode 5 | Jack the Giant Killer | 1977-04-14 | 30 min |
| Season 1 | Episode 6 | It's Only Money | 1977-04-21 | 30 min |
| Season 2 | Episode 1 | Ground Rules | 1977-09-13 | 30 min |
| Season 2 | Episode 2 | Jack Looks for a Job | 1977-09-20 | 30 min |
| Season 2 | Episode 3 | Janet's Promotion | 1977-09-27 | 30 min |
| Season 2 | Episode 4 | Strange Bedfellows | 1977-10-04 | 30 min |
| Season 2 | Episode 5 | Chrissy's Date | 1977-10-11 | 30 min |
| Season 2 | Episode 6 | Alone Together | 1977-10-25 | 30 min |
| Season 2 | Episode 7 | Roper's Car | 1977-11-01 | 30 min |
| Season 2 | Episode 8 | Cyrano de Tripper | 1977-11-08 | 30 min |
| Season 2 | Episode 9 | Chrissy's Night Out | 1977-11-15 | 30 min |
| Season 2 | Episode 10 | Stanley Casanova | 1977-11-22 | 30 min |
| Season 2 | Episode 11 | Janet's High School Sweetheart | 1977-11-29 | 30 min |
| Season 2 | Episode 12 | Jack's Uncle | 1977-12-06 | 30 min |
| Season 2 | Episode 13 | Helen's Job | 1977-12-13 | 30 min |
| Season 2 | Episode 14 | Three's Christmas | 1977-12-20 | 30 min |
| Season 2 | Episode 15 | The Gift | 1978-01-03 | 30 min |
| Season 2 | Episode 16 | The Rivals | 1978-01-10 | 30 min |
| Season 2 | Episode 17 | The Babysitters | 1978-01-17 | 30 min |
| Season 2 | Episode 18 | Home Movies | 1978-01-24 | 30 min |
| Season 2 | Episode 19 | Jack in the Flower Shop | 1978-01-31 | 30 min |
| Season 2 | Episode 20 | Jack's Navy Pal | 1978-02-07 | 30 min |
| Season 2 | Episode 21 | Will the Real Jack Tripper... | 1978-02-14 | 30 min |
| Season 2 | Episode 22 | Days of Beer and Weeds | 1978-02-21 | 30 min |
| Season 2 | Episode 23 | Chrissy, Come Home | 1978-02-28 | 30 min |
| Season 2 | Episode 24 | Bird Song | 1978-05-09 | 30 min |
| Season 2 | Episode 25 | Coffee, Tea or Jack? | 1978-05-16 | 30 min |
| Season 3 | Episode 1 | Double Date | 1978-09-12 | 30 min |
| Season 3 | Episode 2 | Good Old Reliable Janet | 1978-09-19 | 30 min |
| Season 3 | Episode 3 | The Love Diary | 1978-09-26 | 30 min |
| Season 3 | Episode 4 | The Fast | 1978-10-03 | 30 min |
| Season 3 | Episode 5 | Helen's Rendezvous | 1978-10-10 | 30 min |
| Season 3 | Episode 6 | My Sister's Keeper | 1978-10-17 | 30 min |
| Season 3 | Episode 7 | Chrissy and the Guru | 1978-10-24 | 30 min |
| Season 3 | Episode 8 | Larry's Bride | 1978-10-31 | 30 min |
| Season 3 | Episode 9 | Chrissy's New Boss | 1978-11-14 | 30 min |
| Season 3 | Episode 10 | The Crush | 1978-11-21 | 30 min |
| Season 3 | Episode 11 | The Kleptomaniac | 1978-11-28 | 30 min |
| Season 3 | Episode 12 | The Party's Over | 1978-12-05 | 30 min |
| Season 3 | Episode 13 | Eleanor's Return | 1978-12-12 | 30 min |
| Season 3 | Episode 14 | The Older Woman | 1979-01-16 | 30 min |
| Season 3 | Episode 15 | Stanley's Hotline | 1979-01-30 | 30 min |
| Season 3 | Episode 16 | The Catered Affair | 1979-02-06 | 30 min |
| Season 3 | Episode 17 | The Best Laid Plans | 1979-02-13 | 30 min |
| Season 3 | Episode 18 | The Harder They Fall | 1979-02-20 | 30 min |
| Season 3 | Episode 19 | The Bake-Off | 1979-02-27 | 30 min |
| Season 3 | Episode 20 | An Anniversary Surprise | 1979-03-13 | 30 min |
| Season 3 | Episode 21 | Jack Moves Out | 1979-05-08 | 30 min |
| Season 3 | Episode 22 | Triangle Troubles | 1979-05-15 | 30 min |
| Season 4 | Episode 1 | Jack on the Lam | 1979-09-11 | 30 min |
| Season 4 | Episode 2 | Love Thy Neighbor | 1979-09-18 | 30 min |
| Season 4 | Episode 3 | The New Landlord | 1979-09-25 | 30 min |
| Season 4 | Episode 4 | Snow Job | 1979-10-02 | 30 min |
| Season 4 | Episode 5 | Jack the Ripper | 1979-10-09 | 30 min |
| Season 4 | Episode 6 | The Life Saver | 1979-10-23 | 30 min |
| Season 4 | Episode 7 | Old Folks at Home | 1979-10-30 | 30 min |
| Season 4 | Episode 8 | A Camping We Will Go | 1979-11-06 | 30 min |
| Season 4 | Episode 9 | Chrissy's Hospitality | 1979-11-13 | 30 min |
| Season 4 | Episode 10 | The Loan Shark | 1979-11-20 | 30 min |
| Season 4 | Episode 11 | The Love Barge | 1979-11-27 | 30 min |
| Season 4 | Episode 12 | Ralph's Rival | 1979-12-04 | 30 min |
| Season 4 | Episode 13 | A Black Letter Day | 1979-12-11 | 30 min |
| Season 4 | Episode 14 | The Reverend Steps Out | 1979-12-18 | 30 min |
| Season 4 | Episode 15 | Larry Loves Janet | 1980-01-08 | 30 min |
| Season 4 | Episode 16 | Mighty Mouth | 1980-01-15 | 30 min |
| Season 4 | Episode 17 | The Love Lesson | 1980-01-22 | 30 min |
| Season 4 | Episode 18 | Handcuffed | 1980-01-29 | 30 min |
| Season 4 | Episode 19 | And Baby Makes Two | 1980-02-05 | 30 min |
| Season 4 | Episode 20 | Jack's Bad Boy | 1980-02-12 | 30 min |
| Season 4 | Episode 21 | Lee Ain't Heavy, He's My Brother | 1980-02-26 | 30 min |
| Season 4 | Episode 22 | The Root of All Evil | 1980-03-04 | 30 min |
| Season 4 | Episode 23 | Secret Admirer | 1980-03-11 | 30 min |
| Season 4 | Episode 24 | The Goodbye Guy | 1980-03-25 | 30 min |
| Season 4 | Episode 25 | Jack's Graduation | 1980-05-06 | 30 min |
| Season 5 | Episode 1 | Upstairs, Downstairs, Upstairs | 1980-10-28 | 30 min |
| Season 5 | Episode 2 | And Justice for Jack | 1980-11-11 | 30 min |
| Season 5 | Episode 3 | A Hundred Dollars a What? | 1980-11-18 | 30 min |
| Season 5 | Episode 4 | Downhill Chaser | 1980-11-25 | 30 min |
| Season 5 | Episode 5 | A Crowded Romance | 1980-12-02 | 30 min |
| Season 5 | Episode 6 | Room at the Bottom | 1980-12-09 | 30 min |
| Season 5 | Episode 7 | Chrissy's Cousin | 1980-12-16 | 30 min |
| Season 5 | Episode 8 | Jack to the Rescue | 1981-01-06 | 30 min |
| Season 5 | Episode 9 | The Not-So-Great Imposter | 1981-01-13 | 30 min |
| Season 5 | Episode 10 | Jack's Other Mother | 1981-01-20 | 30 min |
| Season 5 | Episode 11 | Make Room for Daddy | 1981-01-27 | 30 min |
| Season 5 | Episode 12 | Janet's Secret | 1981-02-03 | 30 min |
| Season 5 | Episode 13 | Father of the Bride | 1981-02-10 | 30 min |
| Season 5 | Episode 14 | Furley vs. Furley | 1981-02-17 | 30 min |
| Season 5 | Episode 15 | In Like Larry | 1981-02-24 | 30 min |
| Season 5 | Episode 16 | Teacher's Pet | 1981-03-03 | 30 min |
| Season 5 | Episode 17 | And Baby Makes Four | 1981-03-10 | 30 min |
| Season 5 | Episode 18 | Night of the Ropers | 1981-03-17 | 30 min |
| Season 5 | Episode 19 | Double Trouble | 1981-03-24 | 30 min |
| Season 5 | Episode 20 | Dying to Meet You | 1981-05-05 | 30 min |
| Season 5 | Episode 21 | The Case of the Missing Blonde | 1981-05-12 | 30 min |
| Season 5 | Episode 22 | Honest Jack Tripper | 1981-05-19 | 30 min |
| Season 6 | Episode 1 | Jack Bares All (1) | 1981-10-06 | 30 min |
| Season 6 | Episode 2 | Jack Bares All (2) | 1981-10-13 | 30 min |
| Season 6 | Episode 3 | Terri Makes Her Move | 1981-10-20 | 30 min |
| Season 6 | Episode 4 | Professor Jack | 1981-10-27 | 30 min |
| Season 6 | Episode 5 | Some of That Jazz | 1981-11-03 | 30 min |
| Season 6 | Episode 6 | Lies My Roommate Told Me | 1981-11-10 | 30 min |
| Season 6 | Episode 7 | Two Flew Over the Cuckoo's Nest | 1981-11-17 | 30 min |
| Season 6 | Episode 8 | Eyewitness Blues | 1981-11-24 | 30 min |
| Season 6 | Episode 9 | Boy Meets Dummy | 1981-12-01 | 30 min |
| Season 6 | Episode 10 | Dates of Wrath | 1981-12-08 | 30 min |
| Season 6 | Episode 11 | Macho Man | 1981-12-15 | 30 min |
| Season 6 | Episode 12 | Strangers in the Night | 1982-01-05 | 30 min |
| Season 6 | Episode 13 | The Matchbreakers | 1982-01-12 | 30 min |
| Season 6 | Episode 14 | Oh, Nun | 1982-01-19 | 30 min |
| Season 6 | Episode 15 | Maid to Order | 1982-01-26 | 30 min |
| Season 6 | Episode 16 | Hearts and Flowers | 1982-02-02 | 30 min |
| Season 6 | Episode 17 | Urban Plowboy | 1982-02-09 | 30 min |
| Season 6 | Episode 18 | A Friend in Need | 1982-02-16 | 30 min |
| Season 6 | Episode 19 | Jack's 10 | 1982-02-23 | 30 min |
| Season 6 | Episode 20 | Doctor in the House | 1982-03-02 | 30 min |
| Season 6 | Episode 21 | Critic's Choice | 1982-03-09 | 30 min |
| Season 6 | Episode 22 | Paradise Lost | 1982-03-16 | 30 min |
| Season 6 | Episode 23 | And Now, Here's Jack | 1982-03-23 | 30 min |
| Season 6 | Episode 24 | Janet Wigs Out | 1982-04-06 | 30 min |
| Season 6 | Episode 25 | Up in the Air | 1982-05-04 | 30 min |
| Season 6 | Episode 26 | Mate for Each Other | 1982-05-11 | 30 min |
| Season 7 | Episode 1 | A Night Not to Remember | 1982-09-28 | 30 min |
| Season 7 | Episode 2 | Jack Goes to the Dentist | 1982-10-12 | 30 min |
| Season 7 | Episode 3 | Diamond Jack | 1982-10-19 | 30 min |
| Season 7 | Episode 4 | Extra, Extra | 1982-10-26 | 30 min |
| Season 7 | Episode 5 | Jack Gets His Own Restaurant | 1982-11-09 | 30 min |
| Season 7 | Episode 6 | Opening Night | 1982-11-16 | 30 min |
| Season 7 | Episode 7 | Cousin Cuisine | 1982-11-23 | 30 min |
| Season 7 | Episode 8 | An Affair to Forget | 1982-11-30 | 30 min |
| Season 7 | Episode 9 | The Brunch | 1982-12-07 | 30 min |
| Season 7 | Episode 10 | The Impossible Dream | 1982-12-14 | 30 min |
| Season 7 | Episode 11 | Breaking Up Is Hard to Do | 1983-01-03 | 30 min |
| Season 7 | Episode 12 | Larry's Sister | 1983-01-11 | 30 min |
| Season 7 | Episode 13 | Bob & Carol & Larry & Terri | 1983-01-18 | 30 min |
| Season 7 | Episode 14 | Going to Pot | 1983-02-01 | 30 min |
| Season 7 | Episode 15 | Star Struck | 1983-02-15 | 30 min |
| Season 7 | Episode 16 | Jack Goes the Distance | 1983-02-22 | 30 min |
| Season 7 | Episode 17 | Jack's Double Date | 1983-03-01 | 30 min |
| Season 7 | Episode 18 | Janet's Little Helper | 1983-03-15 | 30 min |
| Season 7 | Episode 19 | The Apartment | 1983-03-22 | 30 min |
| Season 7 | Episode 20 | Hair Today, Gone Tomorrow | 1983-04-05 | 30 min |
| Season 7 | Episode 21 | Navy Blues | 1983-05-03 | 30 min |
| Season 7 | Episode 22 | Borrowing Trouble | 1983-05-10 | 30 min |
| Season 8 | Episode 1 | Jack Be Quick | 1983-09-27 | 30 min |
| Season 8 | Episode 2 | She Loves Me, She Loves Me Not | 1983-10-04 | 30 min |
| Season 8 | Episode 3 | The Money Machine | 1983-10-18 | 30 min |
| Season 8 | Episode 4 | Out on a Limb | 1983-10-25 | 30 min |
| Season 8 | Episode 5 | Alias Jack Tripper | 1983-11-01 | 30 min |
| Season 8 | Episode 6 | Hearing Is Believing | 1983-11-08 | 30 min |
| Season 8 | Episode 7 | Grandma Jack | 1983-11-22 | 30 min |
| Season 8 | Episode 8 | Like Father, Like Son | 1983-11-29 | 30 min |
| Season 8 | Episode 9 | The Odd Couples | 1983-12-06 | 30 min |
| Season 8 | Episode 10 | Now You See It, Now You Don't | 1983-12-13 | 30 min |
| Season 8 | Episode 11 | The Charming Stranger | 1983-12-20 | 30 min |
| Season 8 | Episode 12 | Janet Shapes Up | 1984-01-04 | 30 min |
| Season 8 | Episode 13 | Itching for Trouble | 1984-01-10 | 30 min |
| Season 8 | Episode 14 | Baby, It's Cold Inside | 1984-01-17 | 30 min |
| Season 8 | Episode 15 | Look What I Found | 1984-01-24 | 30 min |
| Season 8 | Episode 16 | Jack's Tattoo | 1984-01-31 | 30 min |
| Season 8 | Episode 17 | Jack Takes Off | 1984-02-21 | 30 min |
| Season 8 | Episode 18 | Forget Me Not | 1984-02-28 | 30 min |
| Season 8 | Episode 19 | The Heiress | 1984-03-08 | 30 min |
| Season 8 | Episode 20 | Cupid Works Overtime | 1984-03-15 | 30 min |
| Season 8 | Episode 21 | Friends and Lovers (1) | 1984-09-18 | 30 min |
| Season 8 | Episode 22 | Friends and Lovers (2) | 1984-09-18 | 30 min |
| Production | Bernie West | Producer |
| Production | Michael Ross | Producer |
