Doctor Who: 14 Cool Details Revealed In David Tennant's The End Of Time Part One Commentary

It's hard to believe that David Tennant's final Doctor Who story is now over a decade old. During his tenure, it was genuinely quite hard to picture the show without him, and yet, here we are, with Doctor Who still raking in millions of viewers all these years later.

That final story is The End Of Time, which was split into two parts across Christmas Day 2009, and New Year's Day 2010. As the Tenth Doctor's grand sendoff, there was an enormous amount of pressure heaped upon both episodes, and while it's far from the best that showrunner Russell T Davies cooked up during his reign, The End Of Time is a slam-dunk in terms of hitting all the emotional beats you'd want it to.

Its status as a regeneration story also means that it's one of the most debated and discussed Tenth Doctor outings within the fanbase, but wouldn't it be great to get David Tennant's perspective on his epic Doctor Who farewell?

Well, yes it would - and thanks to the magic of blu-ray extras, we can do just that.

The commentary track for The End Of Time Part One sees star Catherine Tate and director Euros Lyn join Tennant to discuss everything from Christmas turkeys to on-set slip-ups, revealing loads of cool details along the way. So let's break it down!

The episode opens on an ordinary Earth high street, before panning down to Donna Noble's granddad, Wilfred Mott, played by the delightful Bernard Cribbins.

Here, Tate and Tennant point out a fun little detail about his costume. See that red hat he's wearing? That wasn't provided to him by the production crew - it's actually Cribbins' own hat that he brought from home.

In addition, Lyn points out that the badge pinned to his hat is a reference to Wilf's military days, which the character talks about in The End Of Time Part Two. This military experience is another thing that Cribbins brought from his own personal life, with writer Russell T Davies choosing to make it a part of Wilf's character.