sentences:  In 1982 he joined the Chicago CBS station WBBM-TV as a reporter.Ponce left WBBM-TV in late 1991 to take a position as manager of international communications for the telecommunications company Ameritech Corporation.In 1992, Ponce began his career at WTTW11 as a correspondent for "Chicago Tonight "— a position he held until 1997 when he left to become one of Jim Lehrer's supporting anchors on the national PBS show, "The News Hour with Jim Lehrer".