not to mention all kinds of anti-piracy/DRM measures that are usually baked into these machines, and things like HDPC [1] that are made to make this kind of tinkering a absolute pain in the arse.

To add to that this is such a niche market that nobody really cares. It's wayyy easier to just pirate the shows you want to watch and just play them locally via HDMI.

[1]: https://en.wikipedia.org/wiki/High-bandwidth_Digital_Content...