Barney, BITBBH, Blue's Clues, TBOP, Elmo's World, The Hoobs, MSB, MMCH, SS Credits Remix

I made another credits remix video by myself. This one has Barney, BITBBH, Blue's Clues, TBOP, Elmo's World, The Hoobs, MSB, MMCH and SS in it. This time, I used Goofy Baby, my MSB 1996 credits video, Babies, Dogs and Farms, Big Bird Sings, The Big Sleep, Blue's Arts and Crafts and A Day at the Beach. What do BITBBH, TBOP, MSB and MMCH stand for? Let me know in the comments.