After four decades on the air, "Wheel of Fortune" is still full of surprises. 

At least, that’s what viewers learned this week when two contestants won the $100,000 grand prize in the bonus round twice in back-to-back nights of gameplay. While contestants have won the prize before, this marks the only time that two contestants have won it in the same week, let alone two nights in a row. 

Yahoo Entertainment reports that contestant Lisa Kramer took home the grand prize on Monday, earning a total of $116,700 in winnings. On Tuesday’s episode, host Pat Sajak seemed very taken with the win and referenced it several times throughout the show. 

"On yesterday's show, we gave $100,000 in the Bonus Round," Sajak said. "I checked the rules. It can happen two days in a row. Nothing says you can't do that."

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"Wheel of Fortune" made history with two massive prize winnings on back-to-back nights. (Christopher Willard via Getty Images)

That seemed fortuitous as contestant Mark Baer made the historic feat of earning the $100,000 grand prize Tuesday, with a winnings total of $126,550.

Sajak unpacked the historic "Wheel of Fortune" moment in a conversation with his daughter, Maggie, that they posted on Twitter as part of an ongoing series in which he video chats with her from school.

"We’re heading into our 40th season in the fall and yet we still see things we never saw before on the show," the host said.

Sajak added: "I was stunned, I never thought I’d see that on the show." 

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Pat Sajak said that, after 40 years, "Wheel of Fortune" is still full o f surprises.  (Eric McCandless/ABC via Getty Images)

After the first win on Monday night, Sajak noted the very small odds that a contestant would get the $100,000 prize even once. 

"There are 24, which means you’ve got a 4% chance of landing on $100,000, a little over 4%," he explained. "Of course, the odds are greater because you have to solve the puzzle too."

When Maggie asked if he envisioned it happening for a third time, Sajak did his best to lower expectations without spoiling what happens Wednesday night. 

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Pat Sajak discussed a historic win on "Wheel of Fortune."  (Christopher Willard via Getty Images)

"That would be a bit of a long shot," he said. "I will say this, we’ve already taped the show and it was exciting just to be in a position where that was a possibility." 

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Some fans who took to social media to comment on the historic win joked that "Wheel of Fortune" fans can expect to see some pretty complicated puzzles in the coming days since the show just lost well over $200,000 in one fell swoop.