Find the names of programs that are never broadcasted in the morning.
create table broadcast (program_id varchar, time_of_day varchar, PRIMARY KEY (program_id)); create table program (name varchar, program_id varchar, PRIMARY KEY (name)); create table program (name varchar, PRIMARY KEY (name))
select name from program except select t1.name from program as t1 join broadcast as t2 on t1.program_id = t2.program_id where t2.time_of_day = "morning"