Noticed Ruslan shopping his wares on ACA this evening (no, I am not a viewer, it was on in the break room at work I swear!), checked out some of the deals online and this one stood out - I don't think I've even seen a large 4K TV under $500 (this one launched last month at $569), and according to the linked post has an LG panel (if that counts for anything).
I've never used Kogan electronics so can't provide feedback but for a TV that would get a couple of hours use per week max I am strongly considering it to replace the LG currently in my living room.
Delivery was around $50 to post code 4000, and claimed dispatch time 2-3 days. There was an offer to extend the warranty to 3 years but I'd imagine consumer laws would cover it for that at least?
Aldi have their 55" 4k for $499 starting on the 17th if you rather wait and get one at a store so you can return.