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_13917 ( "Year(s)" text, "Selection show" text, "Venue" text, "National final main host" text, "National final co host" text, "Semi final/heat host" text )

### Question ###
What is the name of the national final main host at BBC Television Centre, and the selection show was Eurovision: Your Country Needs You?

### Accurate SQL ###

SELECT "National final main host" FROM table_13917 WHERE "Venue" = 'bbc television centre' AND "Selection show" = 'eurovision: your country needs you'