This episode's headline: One on One; Impeachments Echo; Troubled Land; This Old House. ANCHOR: JIM LEHRER; GUESTS: ROB REINER;BEN STEIN; SHLOMO BEN-AMI, Foreign Minister, Israel; CORRESPONDENTS: FRED DE SAM LAZARO; BETTY ANN BOWSER; SUSAN DENTZER; RAY SUAREZ; SPENCER MICHELS; MARGARET WARNER; GWEN IFILL; TERENCE SMITH; KWAME HOLMAN