To connect your TV to an amplifier, you must use the audio output on the back of your television. Most modern TVs have a digital audio output, either optical or coaxial. Once you have located the audio output, connect your TV's digital output to your amplifier's corresponding digital input, and then you will hear audio on your speaker system. Older TVs may have a stereo analog output, which you can wire into your amplifier's spare stereo analog input.