4. Extensions may serve a variety of different functions. For example, the BBC used
radio dramas to maintain audience interest in Doctor Who during almost a decade during
which no new television episodes were produced. The extension may provide insight into
the characters and their motivations (as in the case of websites surrounding Dawson's
Creek and Veronica Mars which reproduced the imaginary correspondence or journals of their feature characters), may flesh out aspects of the fictional world (as in the web
version of the Daily Planet published each week by DC comics during the run of its 52
series to "report" on the events occurring across its superhero universe), or may bridge
between events depicted in a series of sequels (as in the animated series - The Clone Wars
- which was aired on the Cartoon Network to bridge over a lapse in time between Star
Wars II and III). The extension may add a greater sense of realism to the fiction as a
whole (as occurs when fake documents and time lines were produced for the website
associated with The Blair Witch Project or in a different sense, the documentary films
and cd-roms produced by James Cameron to provide historical context for Titanic).