They dont. They were hard to listen to. Had to mute them from time to time.Maarcelason78, after listeing more closely, I believe you are right. It is Spero Dedes that keeps misprouncing Heise's name Hy-Zee. Their voices are fairly similar at times.
Still, both of them, and CBS should try to correct name mispronouncing. IMO. It's like they don't care.