Traffic Lights - 4 Way

This thread is for the discussion of the Traffic Lights - 4 Way circuit.
I couldnt get this work done...all i have tried i could, including Police Lights...was just perfect...Can u maybe post a vídeo just like it to help us all get this working? I would appreciated if u can take some time to do it so. Btw ..the fOrum seems nice..Thanks A lot..
Best Regards.