 WABD became WNEW-TV and later WNYW.WTTG still broadcasts under its original call letters as a Fox affiliate.For 50 years, DuMont was the only major broadcast television network to cease operations, until CBS Corporation and Time Warner shut down two other struggling networks, UPN and The WB, in September 2006, to create The CW Television Network – whose schedule was originally composed largely of programs from both of its predecessor networks.