Samsung TVs from 2022-2026 have been broken wide open over the last 2 months (multiple ways to get root, multiple ways to keep it persistent)[0]. Which is a good thing, because they're spying on you like everyone else.[1]

[0] https://github.com/chris-ritsen/samsung-tv-root

[1] https://news.ycombinator.com/item?id=50193579