What's up it these Removal of channels like LMN, Fuse, CI, VS, BIO, HIST & WE? Are these just duplicate channels or did they get rid of these channels?

__________________
My System:
Diish Network- 2 Dish 500's (110, 119, 61.5), ViP 612 & Vip 222

Switched to Dish Network from Directv on 9/25/09 & Best Move I have ever made!