England's decisive World Cup quarter-final victory over Sweden was watched by nearly 20 million viewers on BBC One, according to overnight figures.
An average of 15.8 million watched the whole match, which saw England secure a place in the semi-final.
A peak audience of 19.9 million viewers were watching as the match ended.
It was live-streamed online by 3.8 million people, making it the BBC's highest online-viewed live programme ever.
Match of the Day host Gary Lineker, who fronted the coverage of the quarter-final, said: "Humongous figures again for England.
Overall, 3.9 million people either live-streamed the game or accessed the match on catch-up that evening via BBC iPlayer or BBC Sport.
During the match, social media showed people on planes, at airports and even at weddings live-streaming the match on their phones.
Some couples organised their wedding around the game, postponing speeches until the final whistle had blown.
The match starts at 19:00 BST and will be broadcast on ITV. Both ITV and the BBC will broadcast the World Cup final next Sunday.