Samsung 65″ S90D 4K OLED Smart TV $2768 + Delivery ($0 C&C) @ The Good Guys eBay (Excl. ACT, TAS)

$2,768.00 click & collect, although no stores in Melbourne seem to have stock.
+ delivery

Delivery excludes ACT, NSW Regional, QLD Far North, QLD Regional, SA Regional, TAS, VIC Regional, WA Regional, WA Remote.

Also 65″ LG C4 available at this price which is only better if you have Dolby Vision content. OzBargain
Original Coupon Deal

EDIT: Thanks to jasswolf in comments. Can stack with 12% cashback coupon from The Good Guys website to get price down to $2573 for the next hour at least
Cashback link