Stoneham Chamber of Commerce past president Cathy Doucet of Doucet Remodeling & Design Inc., in collaboration with Stoneham TV executive director Amy Palmerino, are seeking businesses to participate in the town’s fourth annual Halloween Trick or Treat Stroll. The event is scheduled to take place from 2 to 4 p.m. Oct. 26. Costumed youngsters, accompanied by adults, may trick-or-treat at participating businesses in and around the downtown business area, and participate in children’s activities at Stoneham TV, 53 Central St., just one block from Main Street. Among the activities being planned: pumpkin decorating, children’s games, and an opportunity to be recorded saying “You’re watching Stoneham TV” for later broadcast. All chamber member businesses are invited to participate, even if they are not located in the square. The Halloween Stroll is a rain-or-shine event. There is no fee to participate. For more information, contact the Stoneham Chamber at 781-438-0001.