The Russians said a number of rebel vehicles, anti-aircraft installations and communication facilities and a relay transmitter were destroyed.

BBC: Row over Chechnya 'atrocities'

The switchover is happening so that Freeview services can be extended to people who cannot currently get them, including those who receive their signal from a relay transmitter.

BBC: Northern Ireland digital switch catches some on hop

Grace Flint has a microphone the size of a shirt button, connected to a transmitter as thin as a credit card, that will relay any foolish admissions you might make to her from around the corner, or across the city, or from just about any place on earth.

CNN: Books - Excerpt: 'Flint'