The solution to software in TVs is to have no software in TVs. A TV is just a big monitor you plug into your PC (albeit, with 10 years of input lag, caused by the said software that should not exist). General purpose OS like Windows or Linux are a good enough interface to choose what video / stream to watch. You can use some software that runs on startup to provide support for a remote control or whatever comfy thing you think requires buying Samsung Garbage Half Working GUI T5007. This fact was stumbled upon by most 20 years ago (largely due to the warez scene, who unintentionally provided a better user experience than anything corpos could create). The idea of needing a special proprietary GUI is purely artificial. Smart TVs were trying to become a thing for 20 years (and had all the same insane security problems from the get go as with any industry who's software is driven by high churn newgrads). Various marketing pitches failed and failed until around 2010-2012 (can't remember). If you are a geek and are trying to jerry rig a modified proprietary Smart TV firmware into your TV, you have fallen for the marketing trick. There's no way you would have come up with an idea like this if they haven't previously marketed Smart TVs as a thing. A much better and easier effort would be to bypass all the garbage circuitry in modern TVs and monitors to ensure they are an actual useful product that can consume and deliver a video input.