I would like to know the composer and the title of the classical music
that plays during the NickJr short film titled "Linny the Guinea Pig
in Space." You can see the video at:
http://www.nickjr.com/playtime/cats/video/all_video/linn_inspace.jhtml

I believe the music may be by Tchaikovsky, but am not sure. Note that
there is a similar short called "Linny the Guinea Pig Under the Ocean"
that I am NOT interested in.

well, if I'm not mistaken, this is the "Danse Espagnole" from the
third act of Swan Lake.  Let me check my iTunes library...  yup,
that's it (I can't believe I knew that off the top of my head... I am
such a ballet geek :-P)...  My recording is at a slower tempo, but
it's the same piece.

... so yes, you were right about the tchaikovsky! :-D  how'd you know?

Wow! Thanks! That's been bugging me for a long time! I knew it was
probably Tchaikovsky because I had already identified the other short
("Linny Under the Ocean") from Swan Lake. I'm very impressed that you
recognized it. How do I credit you for the answer?