Ethernet / Powerline
Powerline adapters are an alternative to running in-wall ethernet cables or using a wireless connection because it can send your media files and data over your household’s existing electrical wiring just like it would over ethernet cables.
A network media player or network device connects to a powerline adapter using an ethernet cable. The powerline adapter is plugged into a wall electrical outlet. It can now send and/or receive media files and data over your home’s electrical wiring to a second powerline adapter in another location. The second powerline adapter is plugged into a wall electrical outlet near the location of your router. It is connected to your router using an Ethernet cable.
This is especially useful with any SMART TV, YouView or Freetime box which gains you additional services by an online connection, and this wired connection gives you the most secure connection available.