two tv in six months

I brought a hi sense 50" inch uhd tv the end of august last year after 3 months it broke i got a replacement the 7 of dec and on fri the 29/3 that one broke too lines running down the screen i was told by a manager and hisense rep(cluess) said the send a tech to my house but it might not be coverd by warrenty still waiting for the tech guy, stay away fr0m hisense