Arthur's Numbers Nightmare / Brain Gets Hooked

S13, E3: Arthur's Numbers Nightmare - When Arthur and friends discover what looks like a list of their class rankings in Principal Haney's office, they are all taken for a surprise. If Arthur's really Number Two, then he must be really smart! And is there anything Francine can do to move up rank? For Buster, Number Eleven is his new lucky number - for everything. Soon the numbers come to mean much more than they should to all the kids on the list. / Brain Gets Hooked - Brain gets hooked on the latest tween reality show "Junior Island." When he starts to ignore his friends and his schoolwork, he knows he's got a problem. But what can he do to break the addiction?