“It was a strange feeling, filming a night scene in Selly Oak High Street with a …” — Jed Mercurio

Some shows do nosedive at the end, or some piece of content could become incredibly controversial and affect the way the show is seen.

I remember watching TV as a kid, and whenever there was some sort of jeopardy involving the hero, I could reassure myself that they were what I'd call a 'can't-die' character, so everything would be OK.

I think it's hugely important to have a strong episode one; you can lose an audience so quickly now. You can't afford to take the attitude that you will use the first one as an introduction and save the high drama for later.

I've never reached the point where I was ready to abandon a series.