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:
| Programme | Date(s) of original removal | Original channel | Date(s) of return | New channel(s) |
| --- | --- | --- | --- | --- |
| Mr. and Mrs. as All Star Mr & Mrs | 1999 | ITV | 12 April 2008 | N/A (Same channel as original) |
| ITV News at Ten | 5 March 1999 30 January 2004 | ITV | 22 January 2001 14 January 2008 | N/A (Same channel as original) |
| Gladiators | 1 January 2000 | ITV | 11 May 2008 | Sky1 |
| Superstars | 2005 | BBC One | July 2008 | Five |
| It'll Be Alright on the Night | 18 March 2006 | ITV | 20 September 2008 | N/A (Same channel as original) |
Question:
What channel number is Gladiators on
Answer:
Sky1