Unless you have a mansion, it wouldn't be 30 metres. The cable would be fastened to the side exterior wall and terminate either at the side or back.
If you choose to have the hub at the front of the house consider running an outdoor Ethernet cable from the hub for connection to the TV box along the same path as the coax cable.
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Hub 3.0, TP-Link Archer C8, TP-Link TL-SG1008D 8-port gigabit switch, V6