1. A signal in the form of radio waves received via an aerial (or via cable or broadband) or microwave signals received via a satellite dish, which are subsequently decoded into moving pictures and audio by circuitry inside a television set or a set-top box.
2. The perceived quality of the received television signal.
3. The ways in which television is used and the interpretation of TV content by viewers in particular contexts: see also active audience theory; glance; heavy viewers; high and low involvement; parasocial interaction; relational uses; sit up or sit back; social uses; structural uses; television flow; uses and gratifications.
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