KA
From Wikipedia
The preview loop showing on the channel has superb HD quality compared with BBC HD. It looks like that the channel will launch May 6th.
Quote:
Following the end of the coverage for the evening, Sky News HD moved to show a looping preview tape, this will continue until Sky News HD is launched in full on the evening of 6 May, to coincide with the coverage of the results for the 2010 General Election.
The preview loop showing on the channel has superb HD quality compared with BBC HD. It looks like that the channel will launch May 6th.