Using Raspberry - OSMC as a Wired Router

I’m using a RPi2, with OSMC. I’m able to connect wirelessly to my Cisco Router. Now, I want to draw a Ethernet cable from my RPi2 to my TV - so that my TV is connected to internet. Essentially, I would like to convert the RPi2 to a wired router. RPi2 is already connected to the internet using my Cisco router.
Any help/ tips/ topics to do this?

Ok, seems this has already been asked (One IP address when wifi and ethernet connected - #12 by h_ramus). Please close this thread.