+i cannot get the sound back on my (LG)TV ITS 50

Check the obvious first, such as whether the mute button is on or whether the volume is turned all the way down. If that's not the issue, try the following steps.

1. Verify that all cables are firmly seated by reinserting each one. Loss of sound from moving, adding, subtracting or bumping into equipment is common. It is particularly applicable if your TV is connected to an exterior sound system. Inputs require tight connections in order for you to hear audio.

2. Confirm that cords are connected to their appropriate plugs. Certain TVs have color-coded inputs that can be matched up with cable boxes and sound systems.

3. Try a new cable to see if that fixes the problem if other components appear to be working. Over time, cables can malfunction, either from age or from wear and tear. Having a spare cable or two around the house can be helpful for troubleshooting and eventual replacement.

4. Verify that the remote is set to:

Proper video input (TV, satellite/cable, DVD)
Correct audio input (TV, DVD player, gaming system)

5. Determine if it's the cable/satellite provider or TV station issue by checking other channels to see if the sound is isolated to a single station. You can also call your provider to see if they're experiencing issues with their audio before checking your own.

6. If an external sound system is used, testing another input such as a radio or CD player is a good way to differentiate problems between the TV and the sound system. There may be faulty inputs.

For more tips and tricks for restoring sound to your TV, check out No sound on TV for more troubleshooting steps. I hope this helps!