Original sentence: 1 July - Experimental colour TV transmissions (625 lines) begin on BBC Two, starting with the Wimbledon tennis championships.1 May - The General Overseas Service is renamed to the BBC World Service.15 November - BBC1 starts broadcasting in colour (simultaneous with rival ITV).2 December - Colour television officially launched on BBC2.25 June - The first worldwide live satellite programme, Our World, is televised.30 September - BBC Radio 1 is launched, as a response to the threat from pirate radio station broadcasts of popular music.8 November - BBC Local Radio starts.At the same time the Light, Third and Home services are renamed Radios 2, 3 and 4.The first station is BBC Radio Leicester
Edited sentence: 1 May - The General Overseas Service is