No Audio after inserting jack in Audio out

If I am inserting the AUX jack (Only Jack, without any headset) into the audio out, I cannot get audio from the TV. Each time, I have to remove the AUX cable from the TV to get audio from the TV. It is really frustrating. WHAT I AM TALKING ABOUT HERE, WAS IN MY OLD SONY TV(KDL-55W804AAA serial number 4500988).