This episode's headline: The Court and the Death Penalty. The guests include Dr. LOREN ROTH, American Psychiatric Association; In Boston (Facilities: WGBH-TV): ALAN DERSHOWITZ, Defense Attorney; In Dallas (Facilities: KERA-TV): CAPPY EADS, Texas Prosecutor; CLAY GRIFFITH, Psychiatrist. Byline: In New York: ROBERT MacNEIL, Executive Editor; In Washington: CHARLAYNE HUNTER-GAULT, Correspondent; LEWIS SILVERMAN, Producer; MAURA LERNER, MARIE MacLEAN, Reporters; THOMAS CALIANDRO, Researcher