In accordance with some implementations of the disclosed subject matter, mechanisms for determining channel information are provided. In some implementations, a method for providing media guidance is provided, the method comprising: associating with a local area network; detecting at least one media device on the local area network; determining device information associated with the at least one media device on the local area network; determining, without user intervention, television provider information based on the device information; determining location information of the at least one media device; determining channel information based on the determined television provider information and the determined location information; and causing media guidance information to be presented that includes at least a portion of the determined channel information.