Complex sentence: Brown remained with CBS until the end of their NBA coverage following the 1990 NBA Finals, then worked on the local broadcasts for the Philadelphia 76ers and the Detroit Pistons before joining TNT in the early 1990s.
Split into simpler sentences: Brown remained with CBS until the end of their NBA coverage following the 1990 NBA Finals. He worked on the local broadcasts for the Philadelphia 76ers and the Detroit Pistons before joining TNT in the early 1990s.