The theme song was recorded in New York City in 1959. It was sung by East Coast big band singer Ann Bennett. The 15-minute session paid her $75 and resulted in both an English and Spanish version.
In the pilot episode The Magic Bag, not listed on IMDB, when Felix is captured by the tractor beam, his yowl is out of sync with the picture. This has been corrected on the DVD.
Singer: Felix the cat, / The wonderful, wonderful cat. / Whenever he gets in a fix / He reaches into his bag of tricks. / Felix the cat, / The wonderful, wonderful cat. / You'll laugh so much your sides will ache. / Your heart will go pit-a-pat, / Watching Felix the wonderful cat.
The theme song always said " You'll laugh so much your sides will ache. / Your heart will go pit-a-pat, / Watching Felix the wonderful cat. " yet the cartoons were never funny. But still we kids watched.
