I love PBS! It's the only place I can see British productions. Benedict Cumberbatch is performing one of the BEST Sherlock Holmes ever! The comedies like Red Dwarf and Mr. Bean have my laughing so hard my sides hurt.
America's Test Kitchen is one of the most educational cooking shows, as they explain the science behind various techniques. PBS has a lot of good chefs.
Without PBS, I would never have seen Canada's "The Red Green Show." That would be tragic! I'd have never known all the uses of the handyman's secret weapon, duct tape.