BS SERVICE FROM HISENSE , TERESANO AND HOUSE AND HOME

I BOUGHT A 50INCH TV IN 2017 FROM HOUSE AND HOME. IVE BEEN HAVING PROBLEMS WITH THIS TV FOR THE LAST 6 MONTHS. 3 TECHNICIANS HAVE COME OUT TO REPLACE SOFTWARE AND PARTS. NOW A COMPANY CALLED TERESANO (APPARANTLY DOES WORK FOR HISENSE TELLS ME THE MOTHER BOARD NEEDS TO BE REPLACED. AFTER 6 MONTHS OF NOT HAVING A TV THEY STILL WANT TO REPAIR IT. THIS IS BULL****. I WANT A NEW TV