You do not necessary needed smart tv.
-mytv super 最好用 mytv box.(not guarantee other setup top box work)
-Set top box is cheaper (for example: unblock tech or others.)
or use windows sticks like
Intel Compute Stick (USD $132)
Asus Chromebit (USD $85)
Lenovo Ideacentre Stick 300 (USD $100)
LG / 三叔 / Sony 是built in app. 有update LG / 三叔 / Sony可能唔理 (hardware/system restricted by the brand). storage size/processing power 又restricted by the tv hardware. 如果電視壞or系統壞=雙失!
Set top box or thumb stick 係分開. 壞什麼就換