by Vera H-C Chan Six minutes late and no sound, the live streaming press announcement of the new " American Idol " judicial line-up turned out to be a mime show. The big announcement of who the new judges started off as a comedy of errors: A montage of video clips introducing Steven Tyler and Jennifer Lopez came through with no sound. When engineers finally fixed the audio, about the time when JLo was speaking onstage, the streaming looked like a bad dub,