Abstract: A broadcast music channel for a one-to-many broadcasting infrastructure, broadcasting at least vocal and instrumental parts of musical performances to currently connected users of the channel, and supporting a user operated interactive control allowing each user independently to remove a vocal part of a current performance if desired. The vocals can be replaced by subtitles, again under interactive control, and the result is a regular music channel that can be used for karaoke if and when desired.

Abstract: Apparatus for use in association with channelwise broadcasting of a series of video channels, comprising: a selector for selecting at least one subgroup of said channels as a package, a package display device for arranging displays of each package as at least part of a package channel comprising a mosaic of minimized video screens, ones of said minimized video screens corresponding to ones of said selected channels. The user can select one of the channels to be in focus, so that the sound heard using the browsing channel is that of the channel in focus. The browsing channel may also include interactive content, independently of the channels in the mosaic.