In October 2008, John was present at the celebration of the 50th anniversary of Blue Peter that Queen Elizabeth held at Buckingham Palace. John's co-hosts Peter Purves and Valerie Singleton were also in attendance, they were joined by other presenters of the show from the history of the program.
In 2005, John reunited with his Blue Peter co-host Peter Purves for the television reality show Britain's Worst Celebrity Driver. Peter had nominated John because he is rather well known for his poor driving skills.