What is the use of A/V OUT in television?

Hey, don't complain about the video output! It's a feature that I miss dearly. Lucky for me I bought what I believe is the last model in the U.S. to have a video output, and that was over a year ago. Many new TVs don't even have analog audio output anymore.

You can use the A/V out to connect to VCRs, DVRs, or other recording devices. (Or just use the audio output to connect to external speakers such as a stereo.) But soon manufacturers discovered that people would do things like copy DVDs they rented from the video store to VHS tapes using the video output, so they stopped putting them on TVs.

The audio out could be connected to a stereo system.

I know of no real practical purpose of a video output.
I would recommend you record TV from your source, not a TV output.

AV out = AUDIO AND VIDEO out put.
for you to connect audio to surround or Amp .or for VCR / DVD recording
not all LCD TV with AV out.
Mid and Hi End models always provide AV out port.

You can use audio out to feed a stereo or surround sound system. I have never seen a TV with video out.