Firewall white list for smart tv

Hello guys,
could you give me some hints how to add my SMART TV , block all outgoing connections with the exception of the addresses in a white list.
Here is what I have come up with :

  1. Assign static IP in the DHCP Server (no hints needed here).
  2. Create an address list and assign the white listed IPs.
  3. Create dst-nat rule allowing connections that have destination as per the white list.
  4. Create dst-nat rule that forbids all connections from the SMART TV.

Am I missing something in the previous ? Could you provide some hints/examples ?

The wiki is your friend.

https://wiki.mikrotik.com/wiki/Manual:IP/Firewall/Address_list