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 broadcast ( channel_id number, program_id number, time_of_day text )
TABLE: CREATE TABLE program ( program_id number, name text, origin text, launch number, owner text )
TABLE: CREATE TABLE channel ( channel_id number, name text, owner text, share_in_percent number, rating_in_percent number )
TABLE: CREATE TABLE broadcast_share ( channel_id number, program_id number, date text, share_in_percent number )

### Question ###
Who are the owners of the programs that broadcast both in the morning and at night?

### Accurate SQL ###

SELECT t1.owner FROM program AS t1 JOIN broadcast AS t2 ON t1.program_id = t2.program_id WHERE t2.time_of_day = "Morning" INTERSECT SELECT t1.owner FROM program AS t1 JOIN broadcast AS t2 ON t1.program_id = t2.program_id WHERE t2.time_of_day = "Night"