King Charles
The royal had a playful response when asked if he'd seen the ITV2 dating show.
The Duke of Sussex received a warm welcome from the public during his engagement in London on Wednesday.
The Duke of Sussex is in the UK this week but will not see his family.
The palace previously announced the king's cancer diagnosis on February 5.
The British actor's performance in The Crown earned him nominations at both the Golden Globes and TV Baftas.
The amateurish montage featured a Canadian car, a South Korean ship and an American jet.
Many are not convinced by the governing party's free-wheeling montage and call for "doomsters" to stop "talking down our country".
The royal appearance comes a little over a week after the Princess of Wales revealed she'd been diagnosed with cancer.
Buckingham Palace previously announced on February 5 that King Charles had been diagnosed with cancer.
The Princess of Wales said cancer was detected after her surgery earlier this year.