BBC Two to be launched (starting on 21 April 1964), and from 1 July 1967, Europe's first television channel to broadcast regularly in colour. It was envisaged as a home for less mainstream and more ambitious programming, and while this tendency has continued to date, most special-interest programmes of a kind previously broadcast on BBC Two, for example the BBC Proms, now tend to appear on BBC Four instead. British television at the time of BBC2's launch consisted of two channels: the BBC Television Service and the ITV network made up of smaller regional companies. Both channels had existed in a state
Top 20 on 20 through the internet. And in June 2009, Sirius XM Hits 1 programming began simulcasting on XM 20 On 20 from 9 p.m. to 12 Noon Eastern. The station was announced on both signals as "Sirius XM Hits 1 On 20 on 20". By September 2009, the channel was removed from Mediabase's reporting panel, and aired music mostly sourced from Sirius XM Hits 1; however, the channel's programming was still different from Sirius XM Hits 1. Until February 9, 2010, Sirius XM Hits 1 and Top 20 on 20 was heard on DirecTV channel 816 until DirecTV has stopped carrying Sirius