Lost.

Who is the intended audience?
Lost is a mainstream text and appeals to both active and passive audiences. Both active and passive viewers can find gratifications with this 2004 television programme. 

3 conventions to prove this:

• The use of a score by Michael Giacchino provokes a range of emotions that active and passive audiences react to. An active audience can decode from the style of music that something is going to happen, and the nature of this occurrence. Eg, if something dangerous is going to happen. A passive audience will be forced into feeling the way the producers want them to feel and from the music will be made to feel happy or sad or tense regardless of the onscreen footage.
• The use of a non-linear narrative structure makes Lost a mainstream text as this a convention that is frequently used in contemporary media now. Using 'flashbacks' to give more of a character understanding and a more complex 'backstory' to the ensemble cast. It makes room for more content and therefore can inform both active and passive audiences about the characters in more depth.
• Enigma codes are frequently used in Episode 2 of Season 1. The combination of close up camera angles to focus on facial expressions or a particular object and the score force the audience into generating views and opinions on what may happen. This engages them and encourages them to continue watching until the enigma codes are solved.

Evidence with narrative:

• A high angle, close up camera shot that slowly pans towards a pair of handcuffs creates questions in the audience's minds regarding why they are there, how did they get there, who do they belong to, and does this mean there is a criminal on the island? Supported by the score this is tense and consequently engaging for the audience.