Original: On January 7, 2008, WWE announced that all brands (Raw, SmackDown and formerly, ECW) would be broadcast in HD, codenamed "WWE HD" starting with Raw on January 21.
Simplified: On January 7 2008, WWE said that all 3 brands (RAW, SmackDown!, and ECW) would be broadcast in HD, codenamed "WWE HD" starting with RAW on January 21.