Knight-Ridder, which publishes 28 newspapers and operates...

Knight-Ridder, which publishes 28 newspapers and operates eight television stations, reported that second-quarter profit increased 4% from the same period a year ago on a 9.6% revenue gain. The Miami-based media concern said its earnings were were helped by moderating newsprint costs and by a comparison with year-earlier results that had been hindered by a one-day strike at the Philadelphia Inquirer in April, 1985. The Inquirer and another Knight-Ridder newspaper in Philadelphia, the Daily News, also were hit with a seven-week strike during the second half of last year.