For those who were early adopters of 4k TVs, here is a good deal on HDCP 2.2 to 1.4 Converter.
Price is $19.49
15% discount with Promo code SCARY15
+ Shipping and Tax in CA
Comments at MonoPrice indicate that it will work with:
- FireTV 2
It may not support PS4 unless TV supports 60Hz (which you probably do not need this).
Shipping was $3.50 for me.