Xiaomi 65" 4K 120hz TV running Android TV for only HKD 3999.

You can install any android app, including popular streaming app like Netflix, Disney+, Amazon Primce, etc.. or play games.

Quality wise it's a decent LCD panel for this price,

If you want a more premium experience and you have x3 to x4 this budget, I would go for the new Samsung QD-LED series or LG C3,