Problem - solution (Hdmi cable / ethernet) wall

[Magic_x_uk]

Hi

Years ago. I had the electrician put me some sockets in for the TV, chased out, ran 3 HDMI cables up the wall. All plastered & decorated over.
Tv then mounted (days before tv's needed ethernet.

Anyhow, new tv. Obviously has ethernet (does have wifi) (LG Nanocell)

Cannot add a ethernet cable otherwise have to dig into walls etc.

Would I survive with WiFi (as firestick, sky all feeds into AV amp) it would only be the tv

Or can I utilise one of the spare HDMI cables to use ethernet if I was to hack it to pieces and fit RJ45 onto each end?

Not sure. Hence asking

Thanks and hope this drivel makes sense.

 

[Magic_x_uk]

Unfortunately the cables were in trunking, tight and covered then plastered, I thought that would be a option. But no chance. There in the wall for life. Thanks for the helpful idea.