MSNBC rings in the holiday season with the Doc Block, but don't expect any heartwarming programming about Toys for Tots campaigns or shopping-mall Santas with incurable diseases.

Meredith Viera hosts MSNBC Undercover: Sex Slaves in America. Dec. 3, at 11 p.m.

Gladiator Days: Anatomy of a Prison Murder Dec. 12 at 11 p.m. and examines the stabbing of a black inmate by a white supremacist in the Utah State Prison.

Discovery Times Channel becomes Investigation Discovery (ID), which makes sense as there's no Times part left. The network will offer more fact-based investigative reporting to its current affairs content (meaning The FBI Files and Most Evil). Alas, no more Amanda Hesser and her painful delivery.