[Brekkie]

So you're asking for a simulcast of Politics Live on BBC Two, BBC Parlament AND BBC News!?

Parliament doesn’t always show it because sometimes the Commons or Lords is sitting while Politics Live is on but the topic is not important enough to show live on BBC2.

Exactly, and if they're all showing live parliamentary coverage of things like PMQs they're covering it anyway.    Ideally BBC News wouldn't have to simulcast anything, but as they do it's better they have as much UK focused coverage as possible.   Irrelevant now though as the BBC News Channel clearly no longer exists.