This certainly is strangely riveting. Stephen Colbert testified before congress today in character.
Whether or not you think it is funny, what is fascinating is that the setting creates a situation in which the audience is absolutely uncertain how to react. Great example about how media and culture is always created and received in a particular context. And that can make all the difference.
What I like about this is less the routine than the justified send-up of congressional hearings in general, with their posturing and feigned indignation.