I have a Tosh 65hx83 and its plastic back cover is very resonant and will rattle like crazy with certain low frequencies. Has anyone else noticed this? Although the rattle cannot usually be heard above the program material, I am concerned that the rattling sound it a detrement to the overall sonic experience. I wonder if there is a way to stop the rattle with baffling of some sort and if I could get Tosh to pay for the mod as it seems to be a design flaw. My previous RPTV, a Toshiba as well, had a mdf back cover and the rattle was not an issue.