Fact: A Disney animated movie is NOT a classic until it has completed the three following tasks:
A) Made a ton of cash,
B) Won at least one Academy Award, and
C) Stood the test of ten years (i.e.: The Little Mermaid, Beauty and the Beast, The Lion King, etc.)
With that in mind, I have no idea why Disney is already releasing a TV special on Frozen, which proclaims it as a classic already. Heck, it should have been broadcast in promotion of its theatrical run late last year.