SamyGO

Hello, I discover through this forum that it is possible to add options, upgrade the TV etc... However, it is very difficult to understand, there is so much models, and so little clear and detailed tutorial. I open this topic to try to understand a little more. I specify that I am not English and my English can be bad, sorry for that.
I have a model TV UE40ES6340. I think the firmware is the T-MST10PDEUC-2007.0.
Is it a good model? What can I do concretely with this TV ? Do you have links to tutorials?