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_29 (lap_by_lap VARCHAR, year VARCHAR, ratings VARCHAR)

### Question ###
Who was the lap-by-lap broadcaster before 1994 who garnered ratings of 8.0/21?

### Accurate SQL ###

SELECT lap_by_lap FROM table_name_29 WHERE year < 1994 AND ratings = "8.0/21"