Below is just my "personal comment" for reference only.
Previously discussed with a Korean friend regarding the quality of Samsung and LG TV. Long story short, he told me ... while both are okay (supposed), Samsung would be a bit better in terms of quality and stability (in general).
I've been using a Samsung 40 inches TV for more than 7 years ... and it's still working without any flaws. In case my TV dies, the successor could be either Samsung or Panasonic.
Anyway, for those who like LG and have good user experience with it, I think it might still be good.
In addition, my relative bought a Philips TV last year and it dies in just a few months of use