Who was the co-host of the actor that played in "How I Met Your Mother"?
A-List Listings:  Hosted by David Burtka and Catt Sadler, the series showcases America's most exclusive and extravagant homes. David Burtka:  He is known for his acting roles in theatre and television shows such as "How I Met Your Mother" and "The Play About the Baby".
i don't know