Prince William and Kate Middleton reluctant to target YouTube audience

It's been 11 months since Kate Middleton and Prince William launched their official YouTube channel "The Duke and Duchess of Cambridge".

The royal couple has posted a total of 19 videos on the website and amassed half a million subscribers.

The Duke and Duchess seems reluctant to grow their audience on YouTube as they posted their last video two months ago.

Only a handful of videos posted by the couple have reached one million views.