==Explanation of dubious tag== 
 When the series ended, there was a 20% increase in the number of people taking out life insurance policies with one provider, which was attributed to Rachel's premature death. 

 fact tag 
 This is stated in the opening text yet isn't cited.  Further down a similar sentence is in place which is cited.  This sentence is less vague and states that it was Tesco Insurance which states this.  That isn't an impartial source and the statement isn't the same as the opening statement, hence as the claim in initially stated isn't adequately sourced. 

 dubious 
 This claim is highly unlikely for three reasons: 
 1.  Given the audience figures, how many people already had life insurance and how many disinterested customers there were, 20% seems improbable. 
 2.  Any increase isn't necessarily attributable to the characters death.  How many other news and cultural influences may there have been at this time? 
 3.  It is really quite an extraordinary claim.  I would want more evidence than simply the data from one insurance provider about their own sales before I would readily accept this claim. 

 other 
 Did Tesco heavily advertise during this episode?  If so, how much of the sales increase is attributable to the story line and how much to advertising?  Unless it can be linked squarely to the storyline it is a little irrelevant.