CREATE TABLE table_33368 ("Year" FLOAT, "Network" TEXT, "Play-by-play" TEXT, "Color commentator ( s ) " TEXT, "Sideline reporter ( s ) " TEXT)

Who is the color commentator for ESPN from 1990 to 1992?
SELECT "Color commentator(s)" FROM table_33368 WHERE "Network" = 'espn'
SELECT "Color commentator(s)" FROM "table_33368" WHERE "Network" = 'espn'