This news release was sent out December 8, 2009, from Nickelodeon: NICK JR. TEACHES PRESCHOOLERS SIGN LANGUAGE WITH NEW INTERSTITIAL MUSIC SERIES, SIGNING TIME, BEGINNING WEDNESDAY, DEC. 9 NEW YORK, Dec. 8, 2009 – Nick Jr., Nickelodeon’s 24-hour commercial-free, educational network, will premiere Signing Time,…