Doctor Who - Children in Need - Approximate Timings

The Radio Times have announced tonight's BBC "Children in Need" lineup in full.  There are two timeslots of interest to us:

7:30pm - 8pm Children in Need Terry Wogan, Tess Daly, and Fearne Cotton present the marathon night of fun and fundraising, which begins with a performance by boy-band One Direction. Then there's the first of two Children in Need Doctor Who exclusives: a prequel to this year's Christmas Special written by Steven Moffat.

and

8:30pm - 9pm Next comes an exclusive trailer for the Doctor Who Christmas special, which will give viewers their first look at the Doctor and his new companion. Then Aled Jones faces the daunting task of uniting thousands of children all over the UK to sing live in a mass nationwide choir. Plus Pudsey Bear will be dancing with his namesake – Pudsey the Dog from Britain’s Got Talent.

We will also discover the title of the Christmas Special.  Obviously, this is a live show - the times are approximate but hopefully the Doctor Who items should be done by 9pm - so we can turn over and watch Colin Baker on "I'm a Celebrity, Get Me Out of Here" on ITV...