Question: Which coach of the Minnesota Vikings has also been a TV Personality since December 29, 2001?
Answer(s):
answer: Mike Tomlin

SPARQL query:
PREFIX ns: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?x
WHERE {
FILTER (?x != ns:m.051q5)
FILTER (!isLiteral(?x) OR lang(?x) = '' OR langMatches(lang(?x), 'en'))
ns:m.051q5 ns:american_football.football_team.historical_coaching_staff ?y .
?y ns:american_football.football_historical_coach_position.coach ?x .
?x ns:tv.tv_personality.tv_regular_appearances ?c .
?c ns:tv.tv_regular_personal_appearance.from "2001-12-29"^^xsd:dateTime . 
}