The document summarizes a study that analyzed how demographic-based TV media plans perform for key consumer packaged goods (CPG) brands. The study found that demo-based plans are inefficient, as they reach all buyer groups equally regardless of their value to brands. On average, brands wasted 30% of exposures on households that did not participate in their categories. Only 15% of exposures reached households that accounted for 80% of sales. Demographics are a poor surrogate for purchasing behavior, as over half of sales fell outside the largest demographic groups used for targeting. The findings suggest media plans should transition from demographic targeting to purchase-based audience buying to improve efficiency.