The sky (or celestial dome) is everything that lies above the surface of the Earth, including the atmosphere and outer space.

The sky is the area above the Earth as seen from the ground.

Sky+, or Sky Plus, is a personal video recorder (PVR) service for Sky in the UK. Launched in early 2002, it allows the user to record, pause and instantly rewind live TV. The system performs these functions using an internal hard drive inside the Sky+ set top box. Its chief competitors in the UK market are the Freeview+, Freesat+, BT Vision, and Virgin Media's V+.