I think they know it, I just don’t think they care. It’s a niche market. On top of that, they’d have to convince the people in that market to trust them.
If they can get a 10-20% return on 10,000 Smart TVs, why waste the effort on properly developing and supporting 3 PrivaTVs (patent pending, exclusions apply, see your local drunk for details)?
I could be wrong, I just don’t think the market is large enough that they’d be willing to throw manpower at it.