Celebrity Big Brother 2018 concluded its latest series with 1.5 million viewers on Friday evening.
Courtney Act who won Celebrity Big Brother 2018 last night, beating Ann Widdecombe in the final vote.
It was a 'Year Of The Women' special with a total of 16 housemates appearing over the past 32 days.
The first live show last night averaged 1.6 million between 9PM and 10PM live on Channel 5 as fifth, fourth and third places were announced.
1.5 million then returned for the second and final episode of the 21st series, as host Emma Willis revealed the winner.
In between the two shows, Will and Grace averaged 900,000 viewers, up 200,000 on last Friday.
It was the lowest rated Celebrity Big Brother final to date, down on last January's All Stars run which ended with 2.2 million.
And it was also down slightly on 2017 summer's series final, where 1.6 million watched Sarah Harding crowned the winner.
Overall, based on overnight figures, this winter Celebrity Big Brother goes down as the least watched to date.
Celebrity Big Brother and Big Brother will return to Channel 5 in the summer for what could be their last ever series.
Channel 5 has yet to confirm if it will renew the show beyond 2018, the end of its current contract with programme makers Endemol.
Elsewhere in Friday night's TV ratings, in the 9PM hour new drama Requiem averaged 3.4 million for BBC One against 2.3 million for Lethal Weapon on ITV.
In the soaps, Coronation Street had 7 and 6.7 million for its two instalments. Emmerdale averaged 6.3 million and EastEnders had 5.5 million.