Upgrade LCD TV with new PCB

[ElPres]

I have an older LCD TV and I was wondering if anyone has tried or know if it is possible to replace the PCB with one from a newer model?

Specifically I have this model: LG 47LH90QD.

It would be awesome if I could just change the PCB to a newer one with Smart TV function and get a new remote.

I also have an older Analog LCD TV that I would like to upgrade to a Digital if possible.
Any information or investigation into this matter would be awesome.

Thanks.

 

[americanaudiophile]

I think it is safe to say that what you want to do is close to impossible.
If you goal is to add smart functions a ROKU, Apple TV, or Android box will add that kind of functionality at a reasonable price,