The systems cannot carry broadcast network affiliates from other parts of the country (this regulation has largely been openly ignored in recent years during carriage disputes), however cable systems can carry stations from nearby markets if there are no local stations affiliated with one of the major networks (though this is becoming far less common with the shift, particularly since 2006, towards over-the-air stations carrying one network affiliation on their main channel and an affiliation with another network on a digital subchannel, thus allowing these network-affiliated digital subchannels to be carried at least via digital cable).