Boardwalk Empire has been renewed for a second season after airing one episode, HBO announced Tuesday.
"The response from the media and our viewers has been nothing short of amazing," HBO president Michael Lombardo said.
Sunday's series premiere averaged 4.8 million viewers, making it HBO's biggest debut of any program in more than six years.
Boardwalk Empire airs Sundays at 9/8c.
Are you happy Boardwalk Empire is renewed?