Here's an interesting article about the DRM system that the Broadcast Flag scheme is going to use - 5C. 5C is backed by all the usual suspects, and it's apparently even more locked down than we all thought. So the conclusion the author is don't buy a DTV, or help the hackers, etc.
I think that competitors will make Flagless systems (what would you do if you were a small, up-and-coming Chinese firm). Thse Net will enable a massive gray market for these systems. They'll be more expensive than protected systems - because consumers derive more value from them. This difference in price is the value of the property right - which the gray market lets smart players arbitrage. In other words, smart firms will exploit the Broadcast Flag - not buy into it.