My Wife and Kids (2001)

S2E23 Jr. Kyle, Boy Genius

Janet and Michael are shocked to discover that their usually clueless son has performed exceptionally well on an IQ test, qualifying him as a genius. Meanwhile, Junior mistakenly believes he scored a perfect 1600 on his SATs, mixing it up with a girl named Michelle Kyle. In reality, he only managed a 200 out of 1600, despite the fact that you receive 300 points just for correctly spelling your name.