A cohabitation of young men and women begin at Signal House where filled with rosy expectation of love and romance blooms. The “Predictors” with vast experiences in dating and love will detect potential lovers in the Signal House. The most exhilarating love game begins now.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | The Six Residents | 2017-06-02 | 95 min |
| Season 1 | Episode 2 | Do Their Qualities Make Your Heart Beat Faster? | 2017-06-09 | 95 min |
| Season 1 | Episode 3 | Clueless Guy, Friendly Girl, and the Reason They Can't Date | 2017-06-16 | 95 min |
| Season 1 | Episode 4 | After the Date | 2017-06-23 | 95 min |
| Season 1 | Episode 5 | Push and Pull, and the Start | 2017-07-01 | 95 min |
| Season 1 | Episode 6 | Bluff or Truth - What's at the Bottom of the Guys' Hearts? | 2017-07-07 | 95 min |
| Season 1 | Episode 7 | The Girls' Secret | 2017-07-21 | 95 min |
| Season 1 | Episode 8 | Change Makes Us Grow | 2017-07-28 | 95 min |
| Season 1 | Episode 9 | Triangle | 2017-08-04 | 95 min |
| Season 1 | Episode 10 | The World You Live In | 2017-08-11 | 95 min |
| Season 1 | Episode 11 | For a Happy Ending | 2017-08-18 | 95 min |
| Season 1 | Episode 12 | Eight Heart Signals | 2017-08-25 | 95 min |
| Season 2 | Episode 1 | The Six Residents | 2018-03-16 | 95 min |
| Season 2 | Episode 2 | The Man in the Mysterious Room | 2018-03-23 | 95 min |
| Season 2 | Episode 3 | The Christmas Gift | 2018-03-30 | 95 min |
| Season 2 | Episode 4 | The Christmas Date | 2018-04-06 | 95 min |
| Season 2 | Episode 5 | Two Hearts | 2018-04-13 | 95 min |
| Season 2 | Episode 6 | The Last Resident | 2018-04-20 | 95 min |
| Season 2 | Episode 7 | The Girls' Secret Date | 2018-05-04 | 95 min |
| Season 2 | Episode 8 | Someone Who Understands Me | 2018-05-11 | 95 min |
| Season 2 | Episode 9 | The Girls' Secret Date: Part 2 | 2018-05-18 | 95 min |
| Season 2 | Episode 10 | Double Date | 2018-05-25 | 95 min |
| Season 2 | Episode 11 | Two Weeks Left | 2018-06-01 | 95 min |
| Season 2 | Episode 12 | The Last Date: Our Winter Trip | 2018-06-08 | 95 min |
| Season 2 | Episode 13 | The Signal Your Heart Sends Out | 2018-06-15 | 95 min |
| Season 3 | Episode 1 | The Six Residents | 2020-03-25 | 95 min |
| Season 3 | Episode 2 | Occupation Disclosure | 2020-04-01 | 95 min |
| Season 3 | Episode 3 | Midwinter Cosmos | 2020-04-08 | 95 min |
| Season 3 | Episode 4 | First Date | 2020-04-22 | 95 min |
| Season 3 | Episode 5 | Goodbye First Love | 2020-04-29 | 95 min |
| Season 3 | Episode 6 | Lion's Move-in | 2020-05-06 | 95 min |
| Season 3 | Episode 7 | Lion Effect | 2020-05-13 | 95 min |
| Season 3 | Episode 8 | Welcome "Puppy" | 2020-05-20 | 95 min |
| Season 3 | Episode 9 | Women's Date | 2020-05-27 | 95 min |
| Season 3 | Episode 10 | Hidden Emotions | 2020-06-03 | 95 min |
| Season 3 | Episode 11 | Apply For a Secret Date | 2020-06-10 | 95 min |
| Season 3 | Episode 12 | The Wind Blows | 2020-06-17 | 95 min |
| Season 3 | Episode 13 | Before the Storm Comes | 2020-06-24 | 95 min |
| Season 3 | Episode 14 | I Don't Want to Regret | 2020-07-01 | 95 min |
| Season 3 | Episode 15 | Confession Day, Last Choice | 2020-07-08 | 95 min |
| Season 3 | Episode 16 | Special - Recent Interview & Unreleased Video | 2020-07-15 | 95 min |
| Season 4 | Episode 1 | Heart Signal is Back | 2023-05-17 | 95 min |
| Season 4 | Episode 2 | Grocery Shopping | 2023-05-24 | 95 min |
| Season 4 | Episode 3 | For You, Without Your Knowing | 2023-06-02 | 95 min |
| Season 4 | Episode 4 | The First Date | 2023-06-09 | 95 min |
| Season 4 | Episode 5 | A Face-to-Face Talk | 2023-06-16 | 95 min |
| Season 4 | Episode 6 | A New Occupant | 2023-06-23 | 95 min |
| Season 4 | Episode 7 | Truth or Dare | 2023-06-30 | 95 min |
| Season 4 | Episode 8 | The Long-Awaited Dates | 2023-07-07 | 95 min |
| Season 4 | Episode 9 | Complicated Feelings | 2023-07-14 | 95 min |
| Season 4 | Episode 10 | Wrong Time | 2023-07-21 | 95 min |
| Season 4 | Episode 11 | The True Feelings | 2023-07-28 | 95 min |
| Season 4 | Episode 12 | The Last Trip | 2023-08-04 | 95 min |
| Season 4 | Episode 13 | The Second Date in Yeosu | 2023-08-11 | 95 min |
| Season 4 | Episode 14 | The Last Chance | 2023-08-18 | 95 min |
| Season 4 | Episode 15 | The Final Decisions | 2023-08-25 | 95 min |
| Season 4 | Episode 16 | After Signal | 2023-09-01 | 95 min |
| Production | Park Cheol-hwan | Producer |
| Directing | Park Cheol-hwan | Director |
| Writing | Shin Yeo-jin | Writer |
