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_19056 ( "Call sign" text, "Frequency MHz" text, "City of license" text, "ERP W" real, "Height m ( ft )" text, "FCC info" text, "Notes" text )

### Question ###
how many height m ( ft ) with notes being via wccv; formerly w236aj

### Accurate SQL ###

SELECT COUNT("Height m ( ft )") FROM table_19056 WHERE "Notes" = 'via WCCV; formerly W236AJ'