There’s a website called rootmy.tv that can help you find or execute roots right off the TV’s web browser. When I bought the TV, I hadn’t connected it to the Internet a single time, so it still had the stock firmware. I could just type in the URL and click a single button - that’s it. Depending on the firmware, model and brand, this could look different for you. Also I’m not sure if this only works for LG TVs - might have to do some research to find a suitable method for yours.

That also sounds very practical. I’d love to get into Pis sometime, but the RAM fiasco is making them quite expensive for my current budget, sadly.