Question: Which program was on NBC network with executive producer as Glen and Les Charles?
SPARQL query: SELECT DISTINCT ?uri WHERE {?uri <http://dbpedia.org/ontology/network> <http://dbpedia.org/resource/NBC> . ?uri <http://dbpedia.org/ontology/executiveProducer> <http://dbpedia.org/resource/Glen_and_Les_Charles>  . ?uri <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://dbpedia.org/ontology/TelevisionShow>}
Answer: The television shows broadcasted by NBC and with Glen and Les Charles as executive producer are [Cheers, All is Forgiven].