On December 15, 2010 at 00:14, lonechicken said...
I just got a Vizio xvt553sv. The remote that comes with it is bluetooth. I'm not sure how to control this TV with my old MX-500 or even a Pronto TSU-3000 remote.
i found this in a google search, you might be able to revert the tv back to IR control.
[Link: forums.logitech.com]