In Canada, due to the population being concentrated to fewer urban centres (compared to the United States), as well as more lenient policies regarding media ownership (for example, an ownership cap on television stations does not exist, except for within one media market), many television stations have become (or began operation as) O&Os. For instance, CTV and Global currently own and operate an overwhelming majority of their local stations (most of which are located in major urban centres); the few affiliates are located in smaller regional markets like Lloydminster and Thunder Bay.