But I love how he subliminally catechizes his audience. Often he will come in a tone as if mocking Christianity but in fact delivering theologically correct staments (per RC theology).
And one time he had this scientist who was talking about those particles that come in and out of existence. He says that this proves that there is no God. And Colbert ended the interview with, "so if these things come from nothing, and you say God does not exist, can something come from God?"