Claim: Greatest Hits TV, owned by UltimateHits Limited, was launched on March 29, 2010 replacing Rockworld TV (a British television channel which featured rock music) and has a 576i (SDTV 16:9) picture format.
Evidence: UltimateHits Limited 29 March 2010 Rockworld TV 576i (SDTV 16:9) Rockworld TV was a British television channel which featured rock music, and was aimed to highlight "underground" lifestyles and artists.