lcd power supply blinking light

[dsity]

Recently I bought a LCD TV/Monitor, and it turned on fine. Then I plugged in the cable tv on the lcd, and a big spark appeared. So I kinda thought nothing of it and unplugged the powersupply. Plugged the cable tv in, then the powersupply in. Everything was fine untill I turned on the lcd, and I heard that spark sound again. The power supply light flashes on and off, and while its plugged into the lcd the lcd on light flashes on and off. Did I fry my lcd too or just the powersupply? I had already run cable through the lcd tv before and it was fine, what happened?