Prince Harry and Meghan Markle’s recent intimate sit-down with Oprah proves to be the gift that keeps giving.

The interview broadcast on March 7 on CBS, which drew more than 21 million U.S. viewers through March 12 according to Nielsen, has also caused a surge in viewership of Netflix’s The Crown.

That’s according to the service Reelgood that allows users to aggregate their streaming services in one place. It also keeps track of what viewers watch.

After analyzing the data concerning just how big of an effect the interview has had on recent viewership, Reelgood found that it has doubled the typical amount of daily streams for the series. Spikes in viewership were also observed after other events like the release of a statement from Buckingham Palace on behalf of the Queen and the show’s recent Golden Globe wins.

Additionally, Netflix listed The Crown as making an appearance as the ninth most-watched show on the streamer among 2 million Reelgood users in the United States this past week.

Recently, the data science company Parrot Analytics also found that the Oprah special sparked a notably renewed interest in both Netflix’s The Crown and The Royals. Parrot, which noted it was the latest instance of real-world events strongly correlating with significant changes in TV demand, said the increase occurred in both the U.S. and the UK.