I just bought a new TV - Vizio XVT553SV and ordered COX cable. The COX guy came and set everything up including the COX remote to operate the TV.
So my COX remote is operating the TV controls.But I want it the other way around i.e. my TV remote to control COX- which can be done as per the manual.
I tried following the instructions, but nothing was happening. So, I called up Vizio customer support and the guy said that since the COX remote was programmed before and there's only 1 code, i won't be able to program my TV remote to control COX- till Vizio comes with some update.

Has anyone encountered such problem? Can anyone suggest a solution?

Thanks,
GG