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_name_54 (pal_m VARCHAR, ntsc_m VARCHAR)

### Question ###
What is the PAL M for the NTSC M 4.5mhz?

### Accurate SQL ###

SELECT pal_m FROM table_name_54 WHERE ntsc_m = "4.5mhz"