Assuming you are using an aerial also connected to the box then your Freeview channels will not suffer, as they are coming via your antenna.
TNT Sports is delivered to you via Multicast which is a direct stream, interruptions to the stream will not be handled very well, Netflix and ondemand apps will not suffer the same as they have a traditional buffer where they store buffered content, the buffer remains full enough to account for poor internet performance...so you do not notice. Multicast you will notice and that is how TNT is delivered.
With that in mind, how is the box connected back to your router (smart hub)?
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BT900 | Nokia ONT | Ubiquiti ER-X | EETV Box Pro (IP Mode) | Unifi CK2 | 6x Unifi U6+ | 2x Unifi SAK Ultra
