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_15740666_4 ( current_streak VARCHAR, kansas_state_vs VARCHAR )

### Question ###
What is the current streak against TCU?

### Accurate SQL ###

SELECT current_streak FROM table_15740666_4 WHERE kansas_state_vs = "TCU"