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_12 ( channel INTEGER, aspect VARCHAR, psip_short_name VARCHAR )

### Question ###
Name the highest Channel with an Aspect of 4:3, and a PSIP Short Name of ibc-tv?

### Accurate SQL ###

SELECT MAX(channel) FROM table_name_12 WHERE aspect = "4:3" AND psip_short_name = "ibc-tv"