CREATE TABLE broadcast (channel_id DECIMAL, program_id DECIMAL, time_of_day TEXT)
CREATE TABLE broadcast_share (channel_id DECIMAL, program_id DECIMAL, date TEXT, share_in_percent DECIMAL)
CREATE TABLE program (program_id DECIMAL, name TEXT, origin TEXT, launch DECIMAL, owner TEXT)
CREATE TABLE channel (channel_id DECIMAL, name TEXT, owner TEXT, share_in_percent DECIMAL, rating_in_percent DECIMAL)

Count the number of programs broadcast for each time section of a day.
SELECT COUNT(*), time_of_day FROM broadcast GROUP BY time_of_day
SELECT COUNT(*), "time_of_day" FROM "broadcast" GROUP BY "time_of_day"