@Shanus
Nutirisystem is still huge for QVC, they are always prominently featured during the pre & post holiday push, and summer push. In fact, they were just on last week or the week before that.
Steel by Design may not be on-air too much, but they are still around, they even have a few new pieces online.
I agree that most of the others on your list are no longer supported and QVC is selling whatever's in inventory.
But you can add -- B. Makowski, orYany (they are still on-air sometimes to get rid of inventory, but nothing new), Cheryl Burke, George Kotsiopoulos Fashions, Mark Zunino, Nicole Ritchie, etc., etc., etc.