Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| No. overall | No. in series | Family/families | Location(s) | Original air date |
| --- | --- | --- | --- | --- |
| UK30 | 1.0 | The Hussain Family and The Philip Family | Leeds & Dorset | 9February2010 |
| UK31 | 2.0 | The Ward Family and The Wren Family | Blackpool & Glasgow | 16February2010 |
| UK32 | 3.0 | The Coughlan Family and The Dumbleton Family | West London & Manchester | 23February2010 |
| UK33 | 4.0 | The McCloud Family and The Griffin Family | Nottingham & Birmingham | 2March2010 |
| UK34 | 5.0 | The Simmons Family | North London | 9March2010 |
Question:
Name the least number in series
Answer:
1.0