I wrote both magazines when we cancelled our subscriptions telling them that if I had wanted a political magazine I would subscribe to one.
So with that said I have to say that we would never watch a show they produce that has anything to do with Christianity.
National Geo had an article in a recent issue slobbering all over Hugo Chavez and his socialist revolution in Venezuela. It was blatantly pro-revolution, quoting Venezuelans who support Chavez and his "reforms" and casting aspersions on the rich citizens who do not. In fact the slant reminded me of similar pro-revolution articles written in past decades about Fidel Castro and Cuba.