Jon Gosselin‘s date book is filling up: First there’s Thanksgiving at Hailey Glassman‘s family home, then on Dec. 14 he has to appear in a Maryland courtroom in relation to TLC’s breach of contract lawsuit against him. reports that a judge will hear TLC’s motion for a preliminary injunction and the dad—of—eight might be questioned under oath about his outside income.

The cable network says Jon, 32, violated the contract he signed with them in a number of ways, including breaching their exclusivity and confidentiality clauses.

The Jon & Kate Plus 8 star will go up against the law firm of Williams & Connolly. also says a number of other witnesses are being lined up against him.

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