Live TV on apple tv?

The CBS Channel in the Apple TV app reportedly does not include live sports, but the separate CBS app for Apple TV (4th generation or later) does.

the appletv is sort of like an ipad which use your tv as display everything and do and display are apps you install from app store

if your cbs has an app which let you stream live from the internet then you can download that

appletv can only display things streamed from the internet or your computers shared lib