Also, it's a stupid reason to get every American to throw out their TV AGAIN (digital tv transition being first) to give the consumer electronics industry a revenue boost.
The industry has run out of features consumers will pay for (3-D tv, screen size, 4K, HDR) during a significant market maturity price erosion - taking 65" TVs from $2,500 down to $1,000 well equiped in only a few years. To reset the pricing scheme, they get the FCC to create a new mandatory feature so they can reset the pricing and sell millions of devices needlessly.