Online deal? - No
Where? - Costco Hayes (Instore ONLY)
What is it? a 55 Inch TV
Model? - 55eg920v
Is it 4K? - Yes (better than HD)
Is it 3D? - Yes (Passive) + 2 pairs of glasses
Is it Curved? - Yes
Smart TV? - Yes
Is it OLED? - Yes, Better than LED (imho)
Built in WIFI? - Yes
HDR? - Yes (Thanks Malachi)
2015 model? - Probably yes
Does it has 5 YR warranty? - Yes
Do I work for Costco? - No
This should help anyone who is looking for a OLED TV. This seems a good deal. Next cheapest one is Richersounds for £1499 but it has 6 years warranty (maybe get them to pricematch).
Hope this helps someone.