Blindspot origins and series launch
Blindspot is an American action drama television series that premiered on NBC on September 21, 2015, and concluded on July 23, 2020, after 5 seasons. Created by Martin Gero and developed in partnership with Greg Berlanti and Sarah Schechter, the series was designed as a character-driven procedural about an amnesiac woman found in a duffel bag in Times Square. The question when did Blindspot start is answered by its official premiere in the 2015–16 television season, with production wrapping in 2020 following its fifth season.
Show origins and creative team
The show origins lie in a concept pitched to NBC around 2013 as a mystery-driven ensemble piece centered on Jane Doe, an unidentified woman with a mysterious past and a tattoo-covered torso that encodes clues to future threats. Martin Gero, known for espionage and drama work, developed the series with oversight from Berlatti Productions and Warner Bros. Television. The creative team emphasized serialized storytelling with procedural elements, aiming to blend character complexity with case-of-the-week investigations for a broad but engaged audience.
Key creative roles
- Creator: Martin Gero
- Executive producers: Greg Berlatti, Sarah Schechter, Martin Gero, and John Dove
- Original network: NBC
- Production companies: Berlatti Television, Warner Bros. Television
Blindspot premiere date and timeslot
Blindspot premiered on September 21, 2015, in the 10:00 p.m. Eastern time period following The Blacklist. NBC ordered a full season of 22 episodes after a strong lead-in from Sunday Night Football. The premiere drew approximately 9.6 million total viewers in live plus same-day metrics, establishing a solid baseline audience for the season.
Premiere episode details
| Attribute | Verified Detail | Source Type |
|---|---|---|
| Series premiere date | September 21, 2015 | Network press release / IMDb |
| Timeslot (season 1) | Sunday 10:00 p.m. ET | NBC schedule archives |
| Episode title | "Pilot" | Production credits |
| Viewers (live same-day) | 9.6 million | NBC/TV by the Numbers |
Season breakdown and finale
After the strong series launch, Blindspot was renewed for subsequent seasons, each with a distinct narrative arc. Season 2 expanded the conspiracy surrounding Jane’s identity, Season 3 leaned into international espionage, Season 4 introduced new allies and antagonists, and Season 5 served as the conclusion. The series finale aired on July 23, 2020, ending a five-season run.
Season at a glance
| Season | Episodes | Season premiere | Season finale | Rank (season) |
|---|---|---|---|---|
| 1 | 22 | September 21, 2015 | May 17, 2016 | #35 |
| 2 | 22 | September 19, 2016 | May 8, 2017 | #47 |
| 3 | 24 | October 1, 2017 | May 22, 2018 | #64 |
| 4 | 20 | October 14, 2018 | May 10, 2019 | #82 |
| 5 | 20 | November 5, 2019 | July 23, 2020 | #75 |
Performance, renewal trajectory, and viewership context
Blindspot season performance fluctuated, with season 1 benefiting from strong lead-in from The Blacklist and Sunday Night Football. Live plus same-day viewership declined after the premiere but remained competitive in the 18–49 demographic through early seasons. By season 4, the series averaged in the low single-digit millions in live viewers. Renewal decisions reflected NBC’s confidence in the mythology and fanbase, even as scheduling and midseason strategies shifted.
Notable ratings snapshots
- Season 1 average (live plus same-day): ~8.5 million viewers
- Season 3 midseason low: under 4 million live viewers
- Season 5 series finale: approximately 3.5 million live viewers
Frequently asked questions about the series timeline
Because the show origin and launch details often generate confusion, here are concise answers to recurring questions about Blindspot timeline and scheduling.
Blindspot quick timeline
| Date or Period | Event | Why it matters |
|---|---|---|
| 2013 | Concept pitched and pilot ordered | Series development begins |
| September 21, 2015 | Season 1 premiere | Official series launch |
| 2017 | Season 3 renewal announced | Continued confidence in the property |
| July 23, 2020 | Series finale | Five-season conclusion |
Where to watch and further context
As of the 2025 media landscape, Blindspot is available for streaming on multiple platforms, which may influence its legacy and long tail. Reruns and the full series offer ongoing exposure for new viewers interested in the intricate mythology that developed from that initial amnesiac protagonist discovered in Times Square. While ratings cooled after the debut, the show maintained enough viewer engagement to complete a five-season arc, illustrating resilience common to event-driven ensemble dramas.
When did Blindspot start? The short answer is September 21, 2015, marking the beginning of a five-season journey that blended serialized mystery with procedural storytelling and evolved across more than 120 episodes.