How many seasons does “Sherlock” have?

This series lists 4 main seasons here, with episode navigation for each season.

Watch Sherlock Online (2010)

Q: Where can I watch “Sherlock” online?

This page does not provide illegal streaming or downloads. Check legal providers for the US first, then verify availability for your region using official sources.

BBC One

Jul 25, 2010 GB 90 min per episode 15 Ended

8.5 ★ ★ ★ ★ ★

6 434 votes

Crime Drama Mystery

Where can I watch “Sherlock” online (legally)?

We don’t host streams or downloads. Below are legal provider hints for the US region first, with a fallback for other English-speaking regions if available.

US / US providers

Streaming

Hulu

AMC Plus Apple TV Channel

Britbox Apple TV Channel

AMC+ Amazon Channel AMC+

AMC+

PBS

Philo

BritBox

PBS Masterpiece Amazon Channel

BritBox Amazon Channel

Spectrum On Demand

Thirteen

WETA+

Wonder Project Amazon Channel

Buy

Amazon Video

Apple TV Store

Google Play Movies

Fandango At Home

▶ Check legal availability (US) Alternative: search on JustWatch

Global / English-region fallback

Found availability signals for: GB

Tip: availability changes often. Click to verify on official listings.

▶ Check providers (GB)

Seasons & episodes

Searching for watch Sherlock season 4 online? Use the episode list below (legal-only availability varies by region).

4 3 2 1

Where to watch “Sherlock” (2010) online legally? See US streaming options first, plus English-region fallbacks.

Sherlock first aired in 2010 • originally associated with BBC One • 4 seasons • 12 episodes • around 90 minutes per episode • status: Ended.

If you searched for “watch Sherlock online” (2010), the safest approach is to verify legal availability in your region (US first, then English-region fallbacks).

It sits in the Crime, Drama, Mystery space, which helps set expectations for tone and pacing.

It’s generally well-rated by viewers, so it’s a strong pick if you want something reliable to start tonight.

This page includes season navigation, episode list, cast, trailer (when available), and legal provider hints to help you decide quickly.

Synopsis

A modern update finds the famous sleuth and his doctor partner solving crime in 21st century London.

Keywords

london, england, detective, based on novel or book, workaholic, investigation, friendship, police, genius, murder, whodunit, doctor, private detective, murder mystery, police procedural, sherlock holmes, army medic, cerebral, suspenseful.