Aw come on. We've kept this great who dunnit going

Aw come on. We've kept this great who dunnit going through 3 seasons with 6 episodes each and only now the editors are saying enough. What are we supposed to do while we twiddle our thumbs?

The new season has completely new actors and a new plot; this will take time to get used to, plus all this science stuff is hard to follow.

I agree, time to move on!