The Queen's Green Planet had over 5 million viewers on ITV last night.
The special documentary averaged 5.2 million in the 9PM hour, the most watched show outside of the soaps.
Featuring a unique conversation between The Queen and Sir David Attenborough as they walked in the garden at Buckingham Palace last summer, the on-off show explored the ambition of a remarkable new initiative - a vast network of native forests across Britain and the Commonwealth, protected forever in The Queen's name.
As usual in the week, was the soaps that topped the night's ratings. Coronation Street averaged 6.9 million and 6.4 million for its two episodes - both down slightly week-on-week.
Emmerdale had 6 million on ITV with Give It A Year, Karren Brady's new business show, averaging 2.8 million for its opening episode.
Earlier, ITV's daytime shows debuted in their new studios with Good Morning Britain, Lorraine, This Morning and Loose Women all averaging between 700,000 and 900,000 viewers
On BBC One, EastEnders was watched by 5.7 million, a rise of 200,000 viewers on last week, while DIY SOS had just 2.3 million viewers in the 9PM slot against ITV.
Elswhere, BBC Two's quiz shows Only Connect and University Challenge both averaged just above 2 million viewers for their new episodes.
And on Channel 4, Richard Ayoade's Travel Man and The Island with Bear Grylls both interested slightly more than 1.5 million.