Why wont My TV wont turn to the AV channel?

I have TATUNG G-series standard TV, i have tried several controls, and none of them change te TV to the AV channels.





They all do work, because hey change the channels of the TV, and can control the volume, but the AV wont work.





I have used the sky TV remote, and also alot of universal remotes, including the remote provided by TATUNG.





Any ideas?

Why wont My TV wont turn to the AV channel?
Look for a button labeled "input", "source", "mode" or something like that. It should switch between the RF input and one or more AV channels.
Reply:Get up and use the contol panel on the TV!!!!
Reply:Probably because you have an inferior 3:4 standart TV, and want to watch something on Audio visual cables.





I have a Samsung 720p 7,000:1 contrast ratio, and watch everything on HDMI. AV LOL!!!!