I been seeing quite a few of these types of failures. The first thing you need to do is have your elecrical power checked out. A bad power strip, a mixed polarity extension cord or just a faulty outlet, any which could do some serious damage to equipment, not to mention the fire hazard.
I own a VIZIO smart TV & every time I hook a DVD player it plays fine for a day or two then all of a sudden the picture is completely black & white.. It almost seems like the TV is ruining the DVD players, but I'm not entirely sure. Anyone know what might be causing this or what I can do to prevent this?