NBC's interview with Princes William and Harry has topped the television ratings in America, according to data from Nielsen Media Research.

12.2m viewers tuned into watch Matt Lauer's interview with the Princes, which aired as a Dateline NBC special Tuesday night. It achieved a 12% share in the adults 18-49 demographic and not only won its timeslot but was the most-watched TV show on the entire night.

The interview will be seen in the UK on June 30.