Channel 5 has reportedly ordered a new fly-on-the-wall documentary series centred on Princess Diana's former butler Paul Burrell.

The 62-year-old served as Diana's personal butler until her death in August 1997 and has since become a regular talking head for royal-related shows and news items.

According to The Sun, the new show has the working title Servant To Celebrity and will delve into Burrell's background and day-to-day life.

"Despite various appearances over the years on TV shows as a talking head, there's not heaps known about the man himself," a source told the newspaper.

"The new series will take a closer look at Paul and his life and go behind the headlines of the past three decades."

Burrell, who came out as gay in 2017, also had a memorable stint on ITV's I'm A Celebrity... Get Me Out Of Here! in 2004.