Global profits due to Canada's simultaneous substitution (or "simsub") regulations, which allow content owners to control programming rights for a particular show in Canada. When an American broadcast network is broadcasting the same show at the same time that Global is (such as the programs mentioned above), Canadian cable subscribers may only watch the Global Television broadcast, even when trying to view the American stations. This law gives them double exposure for their content and a larger share of advertising revenue, effectively blocking American border cities from access to the Canadian market. This was done to help give money to the networks to fund Canadian content development. Global is not the only Canadian broadcaster to use simsubs; nonetheless, some complaints, specific to Global, have arisen due to the following related practices: