Where's the Itsy Bitsy Spider?

T41, E14: Rosita, Telly, and Elmo are waiting for the Itsy Bitsy Spider to climb up the water spout, but the spider is missing! Can the friends track down their arachnid among all the insects in the garden? Also: The Big Bang Theory's Jim Parsons explains the word 'arachnid.' Brought to you by the letter N and the number 8.