Most programs broadcast by MontanaPBS offer educators the right to record the program for use in the classroom within a defined period of time. In many cases this right is extended for one year from the date of broadcast, but in some cases may extend for the normal life of the tape. Look for the specific educational taping rights offered at the end of each program description. The period of time for these educational rights renews every time MontanaPBS rebroadcasts a specific program. Some programs also have curriculum materials for use in conjunction with the program, which generally must be purchased. For more detailed information on educational rights to PBS programs visit: http://www.pbs.org/teachersource/copyright/copyright_trights_definition.shtm.