My parents are getting a new tv, and are asking for recommendation. I think all I can influence is the brand/model (not realistic to propose rpi and more complex systems). I instinctively avoid google/android and lean towards anything else open source, so probably LG WebOS… But I had bad luck searching for more detailed comparisons. Maybe you have experience or opinions?
Rooting (assume you meant this by jailbreak8ng) is not required for this process. Only some apps reauire root. Kodi and the youtube adfree apps don’t require root.