Today on the tube ...

By Victoria Ahearn

The Canadian Press

Thursday, Jan. 24

- Gemini Award-winning Toronto filmmaker Marc de Guerre admits his new documentary, "Why Men Cheat," "will provoke very strong reactions from different points on the spectrum. That's because the feature, airing on "Doc Zone," takes a non-judgmental look at cheating — both the biochemistry and psychological factors involved in it. It also explores the difference between social and sexual monogamy. Interviewees include sex columnist Dan Savage, celebrity lawyer Gloria Allred, and experts in various fields. (CBC)

- "30 Rock" has its series finale next week, and in this penultimate episode things are typically rocky and unpredictable. Liz is desperately trying to save "TGS" from getting the axe just as she gets some unexpected family news. Meanwhile, Jack needs to hire a new network president, and Tracy and Jenna plan their future careers. (Citytv, NBC)

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