Windsor Davies miner and a teacher at Mountside School for Boys in Leek, Staffordshire and did national service in Libya and Egypt with the East Surrey Regiment between 1950-1952 before deciding to become an actor. Davies' best known role was as Battery Sergeant Major Williams in the British sitcom "It Ain't Half Hot Mum" (1974–81). Among his catchphrases was "Shut Up!!", delivered as an eardrum-shattering military scream. Another phrase was "Oh dear, how sad, never mind", delivered in a dry, ironic manner, and used when others around him had problems. Davies and co-star Don Estelle had a number one hit in the
Mum (TV series) premiered on 20 February 2018. Lisa McGrillis revealed that the upcoming third series will be the last and will air in 2019. In June 2016, the BBC announced that a second series had been commissioned. The interior shots of Cathy's house for both Series 1 and 2 were filmed at West London Film Studios. Internationally, the series premiered on BBC First on 11 October 2016. The series premiered in New Zealand on TVNZ 1 on 20 July 2016. The US premiere was 1 July 2018 on PBS. Mum (TV series) Mum is a 2016 British sitcom written by Stefan Golaszewski