Fans of the hugely popular sitcom have said their final farewell to the show after it aired in the US.
Since first hitting screens in 2007, The Big Bang Theory has become one of the most successful comedies in TV history – winning seven Emmy Awards.
It initially centred around a group of awkward male scientists and their interactions with their new female neighbour.
The cast paid tribute to the show, with Johnny Galecki posting on Instagram.
Galecki, who played physicist Leonard Hofstadter, posted a video showing Big Bang Theory creator Chuck Lorre snapping the clapboard for the final take of the final live scene of the series.