User blog comment:Phineas Flynn and Ferb Fletcher/OMG It's been sooo long!!!/@comment-3079802-20110211004451/@comment-3079802-20110211011009

Yea... But (completly off topic with the whole 1/Lizzie thing) but in that same episode, you know how Numbuh 1 could tell Negitive Lizzie, wasn't the real one, well, Numbuh 4 could do the same with Numbuh 3. My brother didn't understand it, but it's kind of obvious.