Mine is a 46" UN46ES6100 about 5 years old. The firmware version is 2004.
BUT IT IS NOT THE TV FIRMWARE VERSION THAT IS THE ISSUE. The individual app versions keep changing. Smart hub was 4.5681 then 4.6261. then... As of now, Netflix is 4.0041, HuLu is 3.013, Amazon is 5.0001
I AM NOT AN *****, despite what Samsung thinks. I know how to check those individual version numbers. (In smart hub, pick the app and press tools). They CONSTANTLY blame the TV firmware, telling my that 2004 is current, so telling me that MY TV is broke thinking it needs to update that firmware. THAT IS WRONG... IT'S THE APPS AND SMART HUB THAT ARE UPDATING, SINCE THE VERSION NUMBERS CHANGE. NOT THE TV FIRMWARE. (And the message on the screen that says smarthub is updating is a pretty big clue too)