That's a little harsh on The Bill. It went through varying formats in its 26 years on screen and the relatively short 'soap opera' phase was never 80% relationships; what they did was have a relationship-focused story arc play out over quite a long period, the individual episodes still centred police procedure, it was probably more like 60% procedure, 40% soap at that stage.
The soap opera phase was good though, I was on the edge of my seat over Sgt. Gilmore and Luke Ashton, when they finally kissed, it was amazing! And Cathy Bradford turning into a psychopath, oh, that was good TV!