Long overdue but from February 1st those with Sky HD will see the HD channels swap with the SD channels.
Thus Sky Sports HD1 will be on Channel 401, HD2 on 402, HD3 on 403 etc etc.
Most channels will be part of this swap but not the old terrestrials - BBC 1, ITV 1, Channel 4 and 5.
Note: This will affect Sky HD customers only.