3 x D-Link DHP-P610AV Powerline 1000AV Gigabit + Ethernet TalkTalk, BT, Sky, EE
Then take the other two DHP-P610AV's to the rooms you require, plug them into wall sockets(not extension leads) and connect each one to the LAN socket of a device (Smart TV, TV box, PC, console etc) using other Ethernet cables.