Who all have been judges on CTV Network's shows?
SELECT DISTINCT ?uri WHERE { ?x <http://dbpedia.org/ontology/network> <http://dbpedia.org/resource/CTV_Television_Network> . ?x <http://dbpedia.org/property/judges> ?uri  . ?x <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/TelevisionShow>}
CTV_Television_Network