What is the {television series episode} for {characters} of {Stephen Hawking}
What's the TV series episode for Stephen Hawking's characters?
 select distinct ?sbj where { ?sbj wdt:P674 wd:Q17714 . ?sbj wdt:P31 wd:Q21191270 } 
select distinct ?subj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?subj . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P674> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q17714> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q21191270> } 
What TV show does Stephen hawking have for his characters?