Need Help In Setting Up Beetel Adsl Router As Access Point


I'm getting internet via RJ45 cable which I've connected to a Netgear WiFi router and have been using it till now. I'm planning to extend the network connectivity to my living room TV for internet and media streaming via NAS. I don't want to pull a LAN cable or powerline adaptors. I found a Beetel 450TC1 ADSL2 router lying in my attic. Can I use it as a access point so that I can connect a LAN cable from the ADSL router to the TV.

If it is possible could you please let me know the setup I should do in my main router and the ADSL router.