Internet Service Providers (ISPs) and the BBC are locked in a row about who should pay for extra network costs incurred by the popular iPlayer service.
The ISPs say the BBC's on-demand TV service is putting strain on their networks, which need upgrading to cope.
Simon Gunter, from ISP Tiscali, says the BBC does not understand the issues involved and should contribute to the extra costs involved.
But Ashley Highfield, head of future media and technology at the BBC, says he believes the cost of the network upgrades should be carried by the ISPs.
The BBC claims one million people downloaded more than 3.5 million programmes during the first month of iPlayer's launch. According to industry regulator Ofcom, it will costs ISPs in the region of £830m to pay for the extra capacity needed to allow for services like the iPlayer.