Digital broadcasting, that provide efficient use of bandwidth, is increasingly being adopted in universe. In Australia, there are extra standard channels, new channels for digital-only, high-definition television, electronic programme guides, and plans for additional services such as data-casting, a supercharged version of teletext. There is even the possibility of making television two-way with talk-back TV potentially saving the broadcasters millions in outside-broadcast costs. Talk-back TV can allow anyone with a mobile videophone to ring the TV station and report on the horror/ excitement/happiness of the event under discussion with their footage digitally broadcast to the millions who may be watching. It has been revealed that the background temperature can rise slightly with the adaptation of digital broadcasting, and if this continues over millennia, it can result in apparent warming of the universe. This digital universal warming, that can create environmental hazard, requires a careful consideration to prevent the universe.