Maher: Rick Perry 'is dumber than Sarah Palin'

In the season finale of HBO's Real Time, host Bill Maher chimed in as expected on Rick Perry's debate gaffe heard around the world.

"At one point when he was trying to come up with the third agency, he actually looked down at his hand, which proves this man is dumber than Sarah Palin," Maher said. "At least Sarah Palin understood that words don't just appear on your hand. Someone has to actually write them."

WATCH: Video from HBO, which was broadcast on November 12, 2011.