 Networks designed primarily for carriage on digital subchannels (such as MeTV) also operate in such a manner, as they are designed with themed specialty formats more akin to cable networks.Although composed similarly to other major networks, The CW and MyNetworkTV focus primarily on primetime entertainment programming only, and do not carry national news or sports programming like the Big Three networks and Fox.PBS, the country's main public television network, is composed similarly of "member stations" operated by non-profit entities, such as media foundations and educational institutions.