generate questions: In 2007, BSkyB and Virgin Media became involved in a dispute over the carriage of Sky channels on cable TV. The failure to renew the existing carriage agreements negotiated with NTL and Telewest resulted in Virgin Media removing the basic channels from the network on 1 March 2007. Virgin Media claimed that BSkyB had substantially increased the asking price for the channels, a claim which BSkyB denied, on the basis that their new deal offered "substantially more value" by including HD channels and Video On Demand content which was not previously carried by cable.
What channels were removed from the network in March of 2007? {sep_token} What year did BSkyB and Virgin Media have a dispute over the carriage of Sky Channels on cable TV? {sep_token} What did Virgin Media claim BSkyB did that resulted Virgin not carrying the channels anymore? {sep_token} What additional srevice did BSkyB offer besides HD channels that they claimed offered "substantially more value"? {sep_token} What additional srevice did BSkyB offer besides Video on Demand that they claimed offered "substantially more value"?