Hello, this sounds very unique. I'm wondering what type of TV reception you have? Is it an antenna on the roof by chance?
antenna on the roof, tv reception is good, mildura switched to digital in july of last year and i have installed a dvd recorder that enables me to receive and record all free to air channels. during the time when the heater is not switced on we have no more troubles than others relative to digital reception. problem occurs when heater is on. heater is about 4 metres from tv equipment
I'd be willing to bet the heater exhaust is causing this. Reloacte the antenna farther away for a test.