I can't see them airing this on t.v for at least 6 mos to a year from now. If they did it would defeat the whole point of releasing it on DVD/BD.
I bought The Secret of the Wings today and watched it right away. I highly recommend getting it if you can. I have all four of them and was pretty disappointed in the 3rd one as it wasn't as good as the first two. This new one rates right up there with the first two. Stunning scenery and animation, good character development and story line. I loved it. If you're a member of Disney Movie Rewards, there's a $5 coupon for it.