New Scotland Yard

"New Scotland Yard" was a successful series in its day. It lasted for 4 seasons altogether but I don't quite understand why the two leading actors were suddenly replaced. Also, their characters were written out entirely. All this occurred for the last season. Judged on its own merits, "New Scotland Yard" is quite an effective series. John Woodvine and Alan Carlisle are the police officers who work on various criminal cases around London. The former officer is very good at his job and is respected. The latter officer though, is something of a loose cannon. He is prone to being rather overzealous in the execution of his duty and ends up in trouble at one stage. This isn't in the same league of "Sweeney" but is very watchable all the same.