A simple program-related information providing apparatus provides information related to a program to be broadcast to a user while the user is watching the program. In particular embodiments, the plant cells are corn plant cells. The body has an aperture adjacent to a closed end and the plunger can be moved to position the sealing member between the aperture and closed end for releasing a partial vacuum created when the paint is drawn into the body and allow the paint to be withdrawn, in use, when the reservoir is connected to a spray gun without actuating the plunger. The tool uses frequency assignment techniques to perform the channel assignments in accordance with varying constraints and criteria.