Complex sentence: Writers of the show Fergan and Norris decided to make series five the final series, thus Brittas is killed by a falling water tank, however Chris Barrie returned to play Brittas for a further two series, as the BBC wanted the show to continue.
Split into simpler sentences: Writers of the show Fergan and Norris decided to make series five the final series, thus Brittas is killed by a falling water tank. However Chris Barrie returned to play Brittas for a further two series, as the BBC wanted the show to continue.