SamyGO

So, i have a Samsung Smart TV from 2013 (UE40F6400), when i was a child i used to watch youtube, talk to my uncle on skype and play my favorite games on the Games panel, my tv had 3 panels in the smart hub (Games, Apps, Multimedia) i really want to get these old stuff back and experience them again so i need to downgrade my tv. Its currently on firmware 2127.0 but i dont remember the old firmware. All i remember is that it had old apps, Had 3 panels including Games panel and old features. If someone can help me, try your best.