Kate Middleton and Prince William launched their YouTube channel last year.
10 months after the launching of the Duke and Duchess of Cambridge channel, the videos posted by the couple have reached 5 million views.
The couple has shared as many as 19 videos ever since they launched their channel.
Kate and William have not received the kind of response to their YouTube channel they did on their Instagram and Twitter accounts.
Their channel is subscribed by only half a million people.