When you drive through the town of Andover, banners on the street lamps proclaim pride in the town's 50th anniversary. But on Tuesday night, something that has never happened before in this east-side suberb will happen. Both Andover High and Andover Central will battle in seperate first round playoff games at home, creating a football double-header on Election Day. Both schools qualified for the state playoffs by winning District Championships last Friday night. As a result, each earned the right to host a first round playoff home game. So, Andover Stadium will see two playoff games on Tuesday: Andover Central will play El Dorado at 4 pm and Andover High will take on Mulvane at 8 pm.