A:Answer Hi Alan. As TV and home entertainment technologies move forward with new connection options, older, less-used connections are no longer a priority for inclusion. As a result, they are decreased in number, consolidated, or eliminated. This affects the vast majority of LCD and OLED TVs and other home entertainment devices. S-Video and DVI connections are already gone, and the number of component video and composite video connections is now few in number. The LG UHD 73 Series 65 inch Class 4K Smart UHD TV with AI ThinQ® (64.5'' Diag), Model # 65UN7300PUF does not have a Headphone (3.5 mm) jack on it. It supports Bluetooth so it can be paired with Bluetooth Headphones for a wireless Bluetooth connection. The TV has an Optical Digital Audio Output in the back that can easily be connected to a Digital/Analog Converter that you can also connect to the older Analog Stereo RCA barrel ports on older stereo receivers. If your local BestBuy is not carrying them, you can find them on BestBuy.com. There is a huge variety to choose from...^IFV