In a video delivery context, collection and analysis of viewing data can provide insight into viewer interaction with video and the Internet. The viewing data can be transmitted in a controlled manner to a data repository. The system can selectively target specific viewers/households to obtain viewing data, which can be combined with demographics, anonymized, and encrypted. Embodiments enable precision selection of media opportunities, by determining detailed characteristics associated with broadcasts including movement of audiences and specific viewer behavior, such as visits to websites on the Internet. The effective yield of broadcasts, including promotional spots and advertisements, can be determined and predicted based on concrete data at a level of detail down to individual viewers. Accordingly, embodiments enable improvement of the effectiveness and return on investment for programming, promotional spots, and advertisements.