My Apple TV wont put bbc on my tv

What is your model Apple TV? Identify your Apple TV model - Apple Support

What is your country or region? UK residents can get the BBC iPlayer app. That is not available outside the UK.

The BBC News app (worldwide) is available for iPhone and iPad, but not for Apple TV box.

if you by appletv modem mean the appletv box then

I believe the bbc media stuff is in the app called iplayer

BBC iPlayer on the App Store (apple.com)