 Conan Doyle fans were generally appreciative . Gwilym Mumford , for The Guardian , suggested that " this has to do with the fact that Moffat and Gatiss are enormously knowledgeable about Conan Doyle 's work , and their reimagining incorporates big- and small @-@ screen adaptations of Holmes , as well as the original stories . As Gatiss puts it : ' Everything is canonical . ' " Sarah Crompton , for The Telegraph , identifies some of the jokes and allusions intended for fans . Commenting specifically on the second series ' finale " The Reichenbach Fall " , The Guardian 's Sam Wollaston praised the show 's faithfulness to Conan Doyle , but also how " it will wander , taking in mobile phone technology and computer hacking ... But it doesn 't feel like cheating ; more like an open relationship , agreed by both parties . " 
