生活大爆炸里Sheldon唱歌押韵的是哪一季哪一集啊？

第二季第14集
leonard帮助penny从她前男友那里要回欠债，但是penny误会是自己还的，还和前男友去约会之后，sheldon说，游吟诗人会为你唱歌的……
sheldon: the true hero doesn't seek adulation. He fight for right and justice simply, because it's his nature.
leonard: penny hocking up with her jerk of ex-boyfriend, and I have indelible ink on my forehead!
sheldon:that's your badge of honor,your warrior's wound, if you will. I was wrong, Minstrels will write songs about you.
leonard: Great...
sheldon:(singing)*There once was a brave lad named leonard,with a fi-fi fiddle dee-dee. He faced a fearsome giant, while Raj just wanted to pee.*