Simplify the following text for a Grade 6 native English-speaking person.
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 .