text1: When did the merger between ABC and Capital Cities gain federal approval?
text2: It also initiated several changes in its management: Frederick S. Pierce was named president of ABC's broadcasting division; Michael P. Millardi became vice president of ABC Broadcasting, and president of ABC Owned Stations and ABC Video Enterprises; John B. Sias was appointed president of the ABC Television Network; Brandon Stoddard became president of ABC Entertainment (a position to which he had been appointed in November 1985); and Roone Arledge became president of ABC News and ABC Sports.