Who was the host of A-List Listings who is known for dating and later marrying Neil Patrick Harris?
A-List Listings: A-List Listings is an American reality television series that debuted October 24, 2012, on E!. A-List Listings:  Hosted by David Burtka and Catt Sadler, the series showcases America's most exclusive and extravagant homes. David Burtka: David Michael Burtka (born May 29, 1975) is an American actor and professional chef. David Burtka:  After his role on "How I Met Your Mother", Burtka gained media attention for dating Neil Patrick Harris, whom he later married in 2014.
David Burtka