Patrick Mulkern wrote many articles for Doctor Who Magazine in the 1980s (1985–88) and was invited back in 2005 and 2009, and most recently (2015) provided an exhaustive production history of Marco Polo, based on director Waris Hussein's paperwork. Since 2008 he's been compiling a definitive Doctor Who story guide on the Radio Times website. In January 2010, he worked on the editorial team and wrote the episode guide for the Radio Times Doctor Who 2005–2010 Special. He researched and co-wrote the Radio Times Companions special published in November 2010. He's previewed and reviewed many episodes for Radio Times.