John Askew from Digital UK explains how viewers watching through a digital aerial services like Freeview, BT Vision or Top-up TV will need to retune on Wednesday.
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The four people who were all related were killed on the A64 near Malton as they returned from a wedding in Leeds.
GMB's Ben Shephard is cycling, running and swimming from Whitehaven to Tynemouth to raise money for the Children's Heart Unit Fund (CHUF).
Grandfather Stewart Anderson, 54, died after an incident at Durham's Loveshack nightclub in Durham City