JIM HENSON: (As Kermit the Frog, singing) Why are there so many songs about rainbows? And what's on the other side? (SOUNDBITE OF SONG, 'RAINBOW CONNECTION') SOFIA: That is not an actual person (laughter). LU: Well, so today on the show, we're going back to school to find out - what is a rainbow, why do we see them, and who exactly is Mr.
SOFIA: (Laughter) I'm so mad at you right now. SOFIA: (Laughter) What? OK, what is going on right now? LU: People like Judy Garland, Willie Nelson, Israel Kamakawiwo'ole, The Carpenters and - my very personal hero - Kermit the Frog all sing about this. LU: Let me tell you - he's very handsome, has a colorful personality and, you know, super famous. LU: Oh, and by the way, I might have met someone on my mission. LU: But just to ease your anxiety, I found some answers for you. LU: Maddie, there's no shame in not knowing. And for me, embarrassingly, on multiple levels, one thing I never really learned is - what is a rainbow? Like, I kind of know. These are episodes about something you heard about in school as a kid, but never really learned. SOFIA: So a couple of weeks ago, I sent you on a very serious mission for today's back-to-school episode. THOMAS LU, BYLINE: Howdy, howdy, Maddie Sofia. Hello there, SHORT WAVE producer Thomas Lu - first time behind the mic.