Sure, we all like sex, violence and cursing, but if you're like me, sometimes you like to pour yourself a nice cup of tea, settle into the couch, and watch something that's a bit more stimulating to the ol' gray matter. Therefore, here's a few shows coming up on PBS you might want to check out. Note that the first couple shows will air during the pledge period, so you'll have to check your listings for the exact date and time.

Kenny Rogers: The Journey (check local listings for date and time) - This combination concert and retrospective looks at forty years of Rogers' work, including interviews with the musician and singer.

The Rockabilly Legends: They Called It Rockabilly Long Before They Called It Rock And Roll (check local listings) - This documentary looks at the roots of rockabilly in Arkansas, Texas and Tennessee.

Journey to Planet Earth: The State of the Ocean's Animals (March 28, 8:00 p.m.) - Hosted by actor Matt Damon, this installment of the PBS series looks at marine animals who face extinction through over-fishing, global warming, and destruction of natural habitat.

Independent Lens: China Blue (April 3, 10:00 p.m.) - If you've never caught an episode of the PBS series Independent Lens, do yourself a favor and check it out. The films showcased on this series are always worth checking out. In "China Blue," a pair of denim jeans is tracked from its creation at a factory in China where teenagers work for six cents an hour, to its sale in the U.S.

Independent Lens: Black Gold (April 16, 10:00 p.m.) - Next to oil, coffee is the most valuable trading commodity in the world. This film examines how companies make money by paying low prices for coffee beans, and how this affects growers in underdeveloped countries.