If someone is wondering, this model is the same as the C6833 except it includes a digital TV tuner. So, while users with the C6843 can usually flash C6833 firmwares without issues (except losing the digital TV tuner function), I don't recommend the opposite.
This FTF should work on both locked and unlocked bootloaders.
@hamdogg , feel free to add this FTF to your FTF Depository.
@Apollo89 for his tutorial on FTF creation ( http://forum.xda-developers.com/show....php?t=2334653 )
@Androxyde for his awesome Flashtool, without which this FTF could not have been created.