Richard:

SONY sent me an email today on their new HDR technology TVs that is showing at the CES that boasts about improved contrast & brightness:

http://www.sony.ca/en/electronics/high-contrast-ratio-led-backlit-4k-hd-tvs

Watch the short video here:

http://www.engadget.com/2016/01/05/sony-4k-hdr-tvs-and-ultra/

Might be worth a look but undoubtedly will initially be pricey...

TAM