Complex sentence: In December 2015, Zaslav led the launch of the company's first U.S. TVE streaming service, Discovery GO, connecting viewers with live and on-demand access to shows and series from its U.S. networks.
Split into simpler sentences: In December 2015, Zaslav led the launch of the company's first U.S. TVE streaming service, Discovery GO. The GO portfolio of TV Everywhere apps connects viewers with live and on-demand access to shows and series from its U.S. networks.