I just watched a few minutes of the DVD release, but the definitely fixed and improved some things.
The vocals are louder, as mentioned before. I noticed that a slightly flat sustained note for Stephanie Mills was "fixed" when she held it out. Shanice doesn't walk away from Stephanie into a giant camera lens anymore either. That shot was cut short (they cut back to Stephanie, which they should have done anyway).
Biggest improvement so far is the editing and shots chosen for the Tornado. Several new, better wide shots were used instead of the muddled closeups. It's still not great choreography by any means, but it looks a lot better now than it did during the telecast.
That's as far as I got, but I'm glad they were able to go in and make these changes for the DVD.
"Jaws is the Citizen Kane of movies."
blocked: logan2, Diamonds3, Hamilton22