NEW YORK (CBS NEWS) – Stephen Colbert returned to “The Colbert Report” on Monday after mysteriously cancelling the tapings of two episodes last week.

The host didn’t directly give an explanation for the shows halt, but he hinted that it was due to his 91-year-old mother’s health, as had been speculated.

“Evidently, having 11 children makes you tough as nails,” said Colbert, 47, the youngest of 11 in his family, on the show Monday night. “Confidential to a lovely lady.”

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