In my quest to find a decent 50" TV for around $600, I have found some nice deals by VideoPro on their ebay site. Hisense makes some decent quality TV's and comes with a 3 years warranty.
Hisense 50" 50N4 Full HD LED TV - $630 delivered with code PLAYER
Next cheapest according to Staticice is $749 + $60 delievery to Melbourne at Bing LeeHisense 50" 50N6 UHD LED TV - 842.60 delievered with code PLAYER
Next cheapest according to Staticice is $1045 + $49 delievery to Melbourne at Hardly NormalHisense 55" 55N4 Full HD LED TVSold out - $879.40 delivered with code PLAYER
Next cheapest according to Staticice is $949 + $60 delievery to Melbourne at Bing Lee
I'd go the TCL over this. https://www.ozbargain.com.au/node/321280
I think the new tcls have proper HDR pro.