Repeated Video Card failure

I have a HDTV consisting of a GA-P55A-UD7 and an Intel I7 processor and W7x64. It is hooked up to a Panasonic P50V10 plasma TV via HDMI. Over the last several months, I have gone through THREE video cards. The last one lasted only three days. I doubt my luck can be that bad regarding video cards so it must be something else. I have never heard of a monitor blowing video cards via an HDMI interface but anything is possible I guess. Any suggestions?
Thanks!