Slight deviation here. Did ATV London pre-68 have local news?
No, Lew Grade insisted that it was not worth the money or effort to establish a weekend news service for London as it was just for two days pre-1968 changes.
Three After Six was the main weekday London regional news of a sort. 6.08pm every weeknight usually except during the summer, Easter, Christmas, bank holidays and whenever Rediffusion got bored.