In 1994, he was appointed Professor of Journalism Studies at the University of Sheffield, and became a Visiting Professor in 2004 and Emeritus Professor in 2007.
Trelford is a member of the Council of the Advertising Standards Authority and Chairman of the London Press Club. He was also a member of the Newspaper Panel of the Competition Commissionfrom 2001-7.
He is a regular broadcaster and has published books on snooker, chess and cricket.
He is married with four children and lives in England and Majorca.