Hello Jeansax.
Thank you for your inquiry.
I can't speak to the question of hearing aids, but there are ways to augment your TV's sound. The best way would be to get a receiver with separate speakers so that you can raise the center channel or speaker which handles all the dialogue. It may not be the least expensive way, but it is the best way to go about it. Monaural speakers tends to "anchor" the sound, creating clear, robust audio that is easy to hear and are particularly effective in reproducing human voices like announcers, actors, and interview subjects. Sound Bars like the LG 2.1 Channel Sound Bar with the Wireless Subwoofer, Model NB3530A are a simple solution that amplify the audio so you can hear better and although they are not as good as separate speakers, they are far better than the built-in TV speakers. The only concern may be that you may have to raise the volume up to be able to hear clearly...IFV

Hello D. Sorry to read that you're having problems with connecting the LG NB3530A Soundbar to your LG 65" Class (64-1/2" Diag.) - LED - 1080p - HDTV, Model # 65LB5200. The NB3530A is not the correct Soundbar for this TV because it does not have the correct Audio Output. You would need a Soundbar that has a Digital Coaxial Input because that is what the Audio Output on the 65LB5200 is. The port looks like an RCA port but it is color coded orange for easy identification and you would need to get a Digital Coaxial cable (careful not to get this mixed up with the RCA Composite Red/White cables, they are not the same!) You might be able to find an adapter of sorts that lets you connect to the TVs Audio Output but you also need to make sure that the adapter if you can locate one, has an Optical Digital Input and Output (also know as the TOSLINK port). Your NB3530A Soundbar only uses the Optical Digital ports for Audio connections (it has 2 of them)...IFV

Hello Zaida.
We apologize for the inconvenience that the subwoofer going out every 5 to 10 seconds is causing you with the LG - 2.1-Channel Soundbar with Wireless Subwoofer - Model # NB3530A.
There are many causes as to why the Subwoofer keeps going out every 5 to 10 seconds due to the Bluetooth technology that the unit uses. Bluetooth is a wireless communication technology that has a short range of about 10 meters (i.e. about 32 feet). It is very prone to other electronic devices like your cell phone, the electrical wires running in your walls, and you also may experience interruptions in the sound between the Subwoofer and the main unit if it the units are placed too far away from each other. Microwaves or wireless LAN devices can also interfere with the sound.
You can try moving the subwoofer closer to the speaker, try moving it away from sockets, check to see if the microwave is nearby or on the other side of the wall. If all your troubleshooting is to no avail, contact the LG Customer Interactive Center at (800) 243-0000 for assistance...IFV

The Subwoofer on the LG - 2.1-Channel Sound bar, Model # NB3530A is WIRELESS! Why would you need an optical cable or any other kind of cable?
Sound Bars will work with any Manufacture given that they have the proper connections. You can connect your Sound Bar to your Sharp TV via the optical cable if the Sharp TV has an optical out or Digital Audio Out (also known as TOSLINK). Another option for hooking your Sound Bar wirelessly if your Sharp TV has that feature, would be via Bluetooth. That way, you wouldn't need any wires at all. You also have the 3.5mm Portable Audio input, or the headphone jack (also referred to as the 1/8" jack) that can be used. If your Sharp TV only has the RCA Stereo Outputs ( Red & White), you can get the appropriate mini stereo jack to RCA cable and connect it that way too!...IFV