Oh where, oh where could Stephen be?! That was the question being hurled around by fans of comedian Stephen Colbert’s The Colbert Report after the show abruptly halted production this week “due to unforeseen circumstances.” The New York Post cited a source Friday that said the show was put on hold as Colbert tended to his ailing 91-year-old mother, who lives in Charleston, S.C. “They are a very private family,” the source told the paper of the Colberts. Stephen is the youngest of 11 children. Colbert told audiences on Monday that he had just returned from a week in South Carolina before the show was snipped later in the week. The show is said to return as early as next week, according to the source.