2 x Netgear Powerline 500 Nano XAV5201 powerline adapters. They are wired/ethernet connected powerline adaptersNOT wireless (i.e. they are not Wi-Fi enabled and require ethernet cables to work). These powerline adapters will work with any Internet Service Provider (Virgin, Sky, BT, TalkTalk etc).
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1pc 1.2m USB Charger Cable Transfer Adapter Wire Data Charging Cord Line For PS Vita PSV 1000 PSV1000 Power Adapter Wire
Aliexpress UK
4 x BT Mini Connector v2 (Version 2) Passthrough powerline adapters (wired / ethernet connected powerline adaptersnot wireless). Each adapter has DUAL ethernet ports (which enables connection via ethernet cables to two internet-enabled devices simultaneously), as well as a passthrough socket so you will not have to sacrifice a wall socket.
eBay
10/100/1000Mbps 12-52V Gigabit Power Over Ethernet Passive PoE Injector Splitter For IP Camera POE Adapter Module Accessories
Aliexpress UK
2x Tenda PH3 Gigabit powerline adapters.They are ethernet cable connected i.e. they donot have a Wi-Fi Hotspot function. Rated at 1000AV (Gigabit). Then take the other adapter to the room you require, plug it into a wall socket (not extension lead) and connect it to the LAN socket of the device (Smart TV, TV box, PC, console etc) using another ethernet cable.
eBay
POE Cable Passive Power Over Ethernet Adapter Cable Waterproof Outdoor POE Splitter RJ45 Injector 12-48v For IP Camera
Aliexpress UK
5 x BT Mini Connector VERSION 2 Pass-through powerline adapters with DUAL Gig ethernet ports (they are wired/ethernet connected powerline adapters. not Wi-Fi adapters).
eBay
Gigabit TYPE-C 5V POE Spliter Adapter Cable Power Supply Module for IP Camera Ethernet 1000Mbps
Aliexpress UK
3 x Simpler Networks HP200PT64BT2 Passthrough powerline adapters (wired/ethernet connectednot wireless). As the signal supplied by powerline adapters is usually more stable than Wi-Fi, they are ideal for solving common Wi-Fi problems such as signal drop outs, Wi-Fi dead spots and buffering on devices.
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Montions POE Adapter Cable with DC Connector RJ45 Injector + POE Splitter DC Passive Power Over Ethernet for IP Camera System
Aliexpress UK
ZYXEL PL-100 POWER LINE ETHERNET ADAPTER
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POE Injector 12V 15V 24V 48V EU US Plug For CCTV IP Camera Power Supply Ethernet Adapter Phone AP
Aliexpress UK
） through a cat5e/6 network cable. through one twisted pair (2 wires). Bilateral heat dissipation. LED lights for monitor easily. 2x IP Ethernet over Twisted pair Extenders. It equipped with two pieces, US/EU/UK/AU standard plug is optional.
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POE Splitter 24V/48V to 12V/5V IEEE 802.3af Output Power Over Ethernet Splitter Adapter Security System (Plug and Play)
Aliexpress UK
1000AV Rated (Gigabit). The TP-Link powerline adapters will work with any Internet Service Provider (Virgin, Sky, BT, TalkTalk etc). 3 x TP-Link TL-PA7017P powerline adapters with passthrough socket (Ethernet connected not wireless).
eBay
Micro USB To RJ45 100Mbps Ethernet Adapter with Power Cord, Compatible with Fire TV Stick2 Chromecast Gen 2/1/Ultra/Audio
Aliexpress UK