שמע ישראל יהוה אלוהינו יהוה אחד

Hear O Israel Hashem is our God Hashem is the One and Only

והיה יהוה למלך על כל הארץ ביום ההוא יהיה יהוה אחד ושמו אחד

HaShem will be King over all of the world on that day Hashem will be One and his Name will be One.

This is for the sake of heaven and earth and not to overwhelm other people praising Hashem.

Broadcasting should not be done during the worlds customary sleeping hours, for it is up to man to rise strong like a lion of Zion and praise Hashem at midnight and sunrise if he or she chooses.

Free will is what makes us Hashem-like בצלם