Mark Burnett & Roma Downey on Continuing Their Bible Series: It Looks Epic

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NBC's upcoming series A.D. The Bible Continues picks up where The Bible miniseries left off and ET sat down with the series producers Mark Burnett and Roma Downey to discuss their latest faith-based project.

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"I think The Bible with 100 million viewers just showed everybody, 'Okay, this deserves to be on network TV,'" Mark told ET. "It looks epic."

After The Bible brought in massive numbers for History, expectations seem to be high for this follow-up. Mark and Roma, who have been married since 2007, have gone on tour, travelling to churches across the country and getting encouraging feedback on the new series.

"People are loving it," Mark said. "They're saying that A.D. is kind of The Bible meets House of Cards meets Game of Thrones."

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For The Bible, the producers cast Portuguese actor Diogo Morgado as Jesus Christ, but they had to start from scratch for A.D.

"It's a difficult role to cast," Roma said. "To find someone who can present themselves with the right amount of strength and beauty and compassion, and we found him in Juan Pablo."

"He's grown up around the church," Mark said. "He's Argentinian, and his mother is a religious painter who has a painting in the Vatican."

As a married couple, ET's Nancy O'Dell wondered what happens when the couple has a disagreement on set?

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"She's the boss," Mark said. "I'm married to an angel. Who is going to take my side over Roma in a production disagreement? No one. I've lost before I've even started."

A.D. The Bible Continues premieres April 5 on NBC.