Radio and television watchdog RTUK said it was fining private broadcaster CNBC-e 52,951 lira (£18,700) over the episode of the hit US TV cartoon series, where scenes include the Devil asking God to make him a coffee.
"The board has decided to fine the channel over these matters," an RTUK spokeswoman said.
CNBC-e said it would comment once the fine was officially announced.
Turkey is a secular republic but most of its 75 million people are Muslim. Religious conservatives and secular opponents vie for public influence and critics of the government say it is trying to impose Islamic values by stealth.
Elected a decade ago with the strongest majority seen in years, Prime Minister Tayyip Erdogan and his Islamist-rooted AK Party have overseen a period of unprecedented prosperity in Turkey.
But concerns are growing about authoritarianism.
Mr Erdogan last week tore into a soap opera over the Ottoman Empire's longest-reigning Sultan and the broadcasting regulator warned the show's makers about insulting a historical figure.