Leaderboard

I have a problem with my tv it has started with a lot of app. Or wedsite that i need to update my browser bc they will nott be supporting mine no more and i update mine even though i have it set to update evry time a new one comes up have done the update 5 or 6 time. And it say it already up to date but i still cant get my youtube back on and it still say i need the update so i contacted LG support just few days ago and the told me i had the lates update 4.11.18. And i get this lg contact thing on my phone few mins ago and first thing i see is the update says 4.71. Something i cant remember but anyways i new to this all internet stuff but from what i see 4.11.18 is a lot of numbers in between mine and the numbers i seen on this page here why would support tell me i was updated if there clearly more then mine is out of of date and i use youtube for every thing im on it pretty much all day long throw my tv so i would like to no how to fix this so i can have youtube back