TELEVISION - Nov. 19, 1991

More, More, More: ABC has renewed “Homefront” for the rest of the season. The hourlong series about an Ohio town in 1945 airs Tuesdays at 10 p.m. . . .”Star Search” will expand to a half-hour, six-day-a-week series next fall. The host of the current one-hour weekend edition, Ed McMahon, will also host the new shows. . . . NBC’s daytime program, “One on One With John Tesh,” has been picked up for an additional 13 weeks.