Who is the color commentator for ESPN from 1990 to 1992?
CREATE TABLE "1990s" (
  "year" real,
  "network" text,
  "play_by_play" text,
  "color_commentator_s" text,
  "sideline_reporter_s" text
);
SELECT "color_commentator_s" FROM "1990s" WHERE "network"='espn';