Questions about old sketches

[finneyridgeway]

First I was wondering if anyone remembers the live-action sketch where the african -american child of around 8 or so found a baby kitten and fed it tuna fish and milk?

Second question is about the Capital I, Lowercase n skits. Does anyone know who performed these songs?

Does anyone also remember an animated skit about a young girl (may have been boy) jumping all around screaming "i'm 6" cause it was her birthday?

 

[Mickey Moose]

Does anyone also remember an animated skit about a young girl (may have been boy) jumping all around screaming "i'm 6" cause it was her birthday?

I believe that was posted on You Tube recently. I'm not sure what the best search criteria would be, but if you do a search for Classic Sesame Street, you should find it listed(but you may need to go through a number of pages).