The chief engineer of operations for WBZ in Boston CBS answered my inquiry regarding the sound on the HDTV programs . The station is equipped to transmit Dolby Digital 5.1 The feed from CBS new York is always in two channel Dolby Digital. He can not explain why this situation exist unless there is potential problem in broadcasting the 5.1 by CBS out of New York I receive the signal through Bell Expressvu satellite in Toronto Canada and it is always top notch quality. It is interesting to note that the ABC station in Boston does broadcast D.D. 5.1. Do any members of the group receive a 5.1 soundtrack from CBS. If not perhaps we should be asking CBS corporate H.Q. Why not?