Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_13549921_18 ( new_channel_s_ VARCHAR, programme VARCHAR )

### Question ###
What channel number is Gladiators on

### Accurate SQL ###

SELECT new_channel_s_ FROM table_13549921_18 WHERE programme = "Gladiators"