Lost (2004): episodes, history and where to watch

AT A GLANCE

Lost first went out in September 2004 on ABC (Channel 4 in the UK). It ran until 2010, with 6 series and 121 episodes so far. In the UK you can usually find it on Disney+.

mystery
drama
american
More from the 2000s

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Why it is worth your time

Survivors of Oceanic 815 on an island with a smoke monster, a hatch and a lot of numbers. The questions were better than the answers, but the journey was gripping.

The details

First broadcast: 22 September 2004
Originally on: ABC (Channel 4 in the UK)
On air: 2004–2010
Series: 6
Episodes: 121
Typical length: 60 minutes
Genres: Drama, Adventure, Supernatural
Usually found on: Disney+
First episode: “Pilot”

Watching it the official way

Older programmes move between broadcasters, streaming services and DVD releases as rights are sold and resold. Paying the rights holder keeps archives alive and pays the people who made them.

The BritCast TV library changes with sources and rights, so we never promise a title before checking. Ask us and we will look, or try a day free and search for yourself.

Lost: quick answers

When did Lost start?

On 22 September 2004, on ABC (Channel 4 in the UK).

How many episodes of Lost are there?

121 had been broadcast by 14 October 2026, across 6 series. The last aired in 2010.

Where can I watch Lost now?

Officially it is usually on Disney+, though rights change.

Dates and episode counts from TVmaze (2026-10-14), CC BY-SA 4.0. Artwork © its owners, shown only to identify the programme.