Marc Hirsh http://nwpr.org en Tweaks, Retooling, And When To Give Up: A Tale Of Two Singing Shows http://nwpr.org/post/tweaks-retooling-and-when-give-tale-two-singing-shows As <em>The Voice</em> returns to NBC this week for its fourth season, viewers are seeing two new, if quite familiar, faces as Shakira and Usher occupy the coaches' seats vacated by Christina Aguilera and Cee Lo Green. Its talent-show rival over on Fox, <em>The X Factor</em>, will also see two new judges when (if? Tue, 26 Mar 2013 16:37:00 +0000 Marc Hirsh 25087 at http://nwpr.org Tweaks, Retooling, And When To Give Up: A Tale Of Two Singing Shows