my parents bought the "smart" tv a decade ago to switch away from setup box It was kinda expensive at the time, its wild of sorts how cheap of sorts TV's have

my parents bought the "smart" tv a decade ago to switch away from setup box It was kinda expensive at the time, its wild of sorts how cheap of sorts TV's have become right now but still we bought it and its just e-waste right now. I am thinking of setting up a raspberry pi but I am more interested in learning the inner details or how to do things preferably without raspberry pi as well