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_53 (play_by_play VARCHAR, network VARCHAR, year VARCHAR)

### Question ###
Who did the play-by-play on the CBC network before 1961?

### Accurate SQL ###

SELECT play_by_play FROM table_name_53 WHERE network = "cbc" AND year < 1961