7PM This episode's headline: Economy: Changing Mood; Fragile Finance; Christopher Hogwood: Going for Baroque. The guests include In New York: FELIX ROHATYN, Financier; Rep. CHARLES SCHUMER, Democrat, New York; JOHN HEIMANN, Former Comptroller of the Currency; Reports from NewsHour Correspondents: MICHAEL BURKE (BBC), in Sharpeville, South Africa; KEITH GRAVES (BBC), in Lebanon; GEORGE ZIMMERMANN (Ohio Public Television), in Columbus; SPENCER MICHELS (KQED-San Francisco), in California. Byline: In New York: ROBERT MacNEIL, Executive Editor; In Washington: JIM LEHRER, Associate Editor