'What Goes Up'
Fletch faces trouble while treating a patient in a tower block.
BBC Drama's Oliver Kent takes over from Johnathan Young as the shows' boss.
A new executive producer is expected to be appointed to the shows.
The actor will make a dramatic return to the show as Martin 'Ash' Ashford.
Veteran BBC One medical drama emerges as the surprise victor on Saturday night.
BBC Cymru Wales confirms that production managed to work around anti-smoking law.
Anti-smoking storyline cut after actors unable to smoke on set.
BBC drama's official Twitter account promises "an emotional farewell".
New cast members make their debuts on the web before being seen on screen.













