the colbert report

Man ive loved this dude for awhile and none of his comedy has been really rivaled in my book(maybe by conan obrian) but ive always noticed in his shows he always screws up his lines.you think he drinks or what,hes been doing it for awhile, and i dont think he'd be screwing up like a rookie. but evvery episode?
im a fan and all
but anyone notice this

yup I've noticed it too, but it doesn't really bother me. He used to mess up every now and then on the Daily Show, but he wasnt on the Daily Show everyday/mon-thurs like he is on the Colbert Report. I don't think he drinks either....