Corrected entry: Throughout the series Mrs. Slocombe's first name changes numerous times. It is Betty in some, Margaret in another, Mary Elizabeth in one and finally Rachel in a few.
Corrected entry: How is it that EVERYBODY on the floor gets to have lunch at the same time?
Correction: Many stores close for lunch time (a half hour, or full hour). This is particularly true for stores that have a "canteen". They don't want to cook all day, so they serve all meals at once.
Correction: As far as is known, her name actually only changed once (Margaret), but officially her name is as follows: Mary Elizabeth Jennifer Rachel Yiddel Abergavenny Slocombe, thereby the Betty (nickname for Elizabeth), Rachel, and Mary Elizabeth. Her full name is sung in an episode where they celebrate what is thought to be her 50th birthday, but according to her, she is only 46. There is also a book about this program that contains this information.