But I think series 5 recieved its lowest ratings since nuWho began. So I will read into it a bit....
Actually taking only they thirteen episodes that make up the main run of the series the average ratings were:
Series 1: 7.95m
Series 2: 7.71m
Series 3: 7.55m
Series 4: 8.05m
Series 5: 7.80m
Which would put Series Five right slap bang in the middle with Series One and Four out performing it.
If we add the Christmas Specials (with The Christmas Invasion being counted with Series Two) and the Specials (The Next Doctor to The End of Time, Part Two) we get:
Series 1: 7.95m
Series 2: 7.87m
Series 3: 7.67m
Series 4: 8.42m
Specials: 11.45m
Series 5: 8.02m
Which places Series Five as the third most popular (or second most popular if you want to count Series Four and the Specials as a single series which would average out at 9.94m)
Okay, you might not agree with my placement of the Christmas Specials, so let's try it with The Christmas Invasion as part of Series One, The Runaway Bride as part of Series Two... The Next Doctor as part of Series Four and The Specials consisting of Planet of the Dead to The End of Time, Part Two...
Series 1: 8.08m
Series 2: 7.83m
Series 3: 7.96m
Series 4: 8.41m
Specials: 11.04m
Series 5: 8.02m
Which still leaves Series Five as being more popular than the first two series of Tennant's tenure as The Doctor. So no, Series Five didn't receive the lowest ratings since NuWho returned.
Even if we go by individual episodes the lowest rating episode of Series Five was The Lodger with 6.44m viewers which is higher than The Satan Pit with 6.08m, Silence in the Library with 6.27m and The Impossible Planet's 6.32m. So even the lowest rating episode of Series five was still more popular than the lowest rating episode of Series Four.
Of the sixteen episodes of NuWho that were watched by less than 7m viewers: three are in Series One, four are in Series Two, three are in Series Three, two are in series Four and four are in Series Five.
So really all you can say is that Smith's first series rated slightly higher than Tennant's first series and had as many individual episodes that rated under 7m which really puts him about even with Tennant's introduction and as I remember it he turned out to be quite popular eventually.
If there's any other misconceptions you'd like debunked please don't hesitate to ask.
