this tv was put out by someone because of the lamp,i got the lamp for 30 bucks got the dvd playing on it picture ok ,now i need to find a way to hook up tv box or anyway to watch tv,HDMI say weak signal in both HDMI ports,i also want to run my computer on it that only has VGA,so i willl get a VGA -HDMI cable with audio if this will worl .but will it if the HDMI wont even pick up from cable box?will my computer stream to it,and can i go with cables to the tv from back of cable box?