Most TVs don't have RCA audio outputs. If it has a headphone jack you can use that. Check the menu system to see if it can be variable or fixed. and cables to connect it to the TV and stereo.

How do I connect my RCA to my new TV?

Plug the red, white and yellow RCA cables into the matching RCA output jacks on the rear of the device that you would like to connect to your television. Connect the other end of the RCA cables to the RCA inputs on the rear of the television to complete the connection.

How do I connect my RCA to my Smart TV?

Plug the white RCA cable into the white output and the red RCA cable into the red output. Reversing them will cause the stereo signal from the smart TV to be incorrect. Take the other end of the RCA cables and plug the white and red ends into an available RCA input on the back of the receiver.