BBC the presentation is mostly carried out locally on BBC One and Two, and where programme schedules can vary greatly from that of the network. BBC Two variations exist in the Nations; however, English regions today rarely have the option to opt out as regional programming now only exists on BBC One. BBC Two was also the first channel to be transmitted on 625 lines in 1964, then carry a small-scale regular colour service from 1967. BBC One would follow in November 1969. A new Scottish Gaelic television channel, BBC Alba, was launched in September 2008. It is also the first
Block programming attempted the block strategy have historically been unsuccessful. Block programming of this nature is alive and well on outlets like public radio (such as NPR, BBC, or the CBC) and in multicultural radio serving broad ethnic and cultural audiences, although even in this realm the idea of block programming is declining due to competition for donations. Some programming blocks have become so popular that they have been transformed to full-fledged 24-hour channels. Current channels which started as program blocks include TeenNick (originally a program block on Nickelodeon); Disney Junior (which is still a program block on the Disney Channel); Nick