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

find the name of the program that was launched most recently.
SELECT name FROM program ORDER BY launch DESC LIMIT 1
SELECT "name" FROM "program" ORDER BY "launch" DESC NULLS LAST LIMIT 1