:00:00. > :00:00.Martin here will Saturday's best stories.
:00:00. > :00:17.Turning back time - how you change this famous clock.
:00:18. > :00:19.And a terrifying time - Ore Oduba takes us backstage
:00:20. > :00:33.First, one of the country's oldest hotels has started to collapse
:00:34. > :00:38.because of a big fire in Exeter, in south-west England.
:00:39. > :00:41.Firefighters are working to put out the blaze,
:00:42. > :00:46.Everyone was safely evacuated from the Royal Clarence hotel,
:00:47. > :00:53.But a broken gas main is making the fire a difficult job.
:00:54. > :00:56.It's such an old building, you've got a lot of seasoned
:00:57. > :00:57.100-year-old timber, it's bone dry.
:00:58. > :01:04.That added to the fact that its floors and walls have given way,
:01:05. > :01:06.so it's been unsafe to put the firefighters directly
:01:07. > :01:09.into the building, which means we've had to fire it what we call
:01:10. > :01:15.The clocks go back one hour at 2am overnight,
:01:16. > :01:19.meaning we get an extra hour in bed, but how do you change
:01:20. > :01:21.the time at the most famous clock in the country?
:01:22. > :01:37.There are 399 steps to the top of this historic British landmark. Most
:01:38. > :01:47.people call it beg them but the building is actually the Elisabeth
:01:48. > :01:52.Power, named in honour of the Queen. -- named Big Ben. This drives the
:01:53. > :01:58.hand everybody sees outside and the bells as well. There is a big job
:01:59. > :02:04.this weekend is early on Sunday the clocks go back one hour. How do they
:02:05. > :02:10.do it? We stop the clock straight after 10pm and what we do is the bit
:02:11. > :02:15.at the back you can hear Teddy we will physically stop it from taking
:02:16. > :02:22.with them brings everything to a halt. Then we advance the hands
:02:23. > :02:27.quickly from 10pm to midnight and stop the clock at midnight and it is
:02:28. > :02:31.not running. But there is a bigger job in the New Year. The tower is
:02:32. > :02:37.160 years old and in desperate need of repairs. Scaffolding will
:02:38. > :02:42.surround the clock for three years but at least one of the clock faces
:02:43. > :02:47.will be kept visible. It need restoration and the good service so
:02:48. > :02:51.that is what we will do, take the opportunity to take every single
:02:52. > :02:58.thing apart, look at it closely. We will make a whole set of drawings,
:02:59. > :03:05.which we do not have the Lord. The chimes were stopped for six wigs
:03:06. > :03:09.gave few days ago. -- six weeks. This time the team do not know how
:03:10. > :03:14.long the bill will be silent for until they start the work of London
:03:15. > :03:18.could be without its famous sound for quite a while. -- how long the
:03:19. > :03:20.bell. The Something that's The far from silent
:03:21. > :03:22.is Strictly Come Dancing's Halloween TV presenter Laura Whitmore is due
:03:23. > :03:27.to dance again after sitting out last week because of an ankle
:03:28. > :03:29.injury, while professional Brendan Cole is also set to return
:03:30. > :03:31.from illness to Former Newsround presenter
:03:32. > :03:34.Ore Oduba sent us this It's Ore reporting behind the scenes
:03:35. > :03:44.of Strictly Come Dancing! Megs, you were saying hi
:03:45. > :03:49.a second ago. Always such an exciting week,
:03:50. > :03:56.Halloween week, because the place becomes even more alive
:03:57. > :03:59.if that's possible. Halloween wasn't really a big deal
:04:00. > :04:03.in my house when we were at school so now is the time to dress up
:04:04. > :04:05.and go crazy! A few outfits here,
:04:06. > :04:13.getting worked on! Sewing machines never stop
:04:14. > :04:20.going in this building, Let me ask this lovely lady,
:04:21. > :04:26.the queen of Halloween... One word to describe
:04:27. > :04:33.Halloween week on Strictly? I think that's an
:04:34. > :04:35.appropriate word! So, Saturday night, BBC One,
:04:36. > :04:41.spectacular, frightening night, make sure you tune in and hopefully
:04:42. > :04:48.Jo and I can pull off Also hoping to score
:04:49. > :05:03.highly today are Arsenal - who could go top of the Premier
:05:04. > :05:07.League if they beat Sunderland. Elsewhere, Jose Mourinho has
:05:08. > :05:18.dismissed rumours that Wayne Rooney The England forward has not started
:05:19. > :05:22.a league game since the 3-1 defeat to Watford last month and has missed
:05:23. > :05:26.United's last two games with injury. He is a very good player and very
:05:27. > :05:30.important player for us. We like him, he likes us,
:05:31. > :05:34.he is not happy because in the last matches he was on the bench
:05:35. > :05:37.but I think he is even unhappier when he is not on the bench
:05:38. > :05:41.because he is injured and has Don't forget the clocks go back
:05:42. > :05:50.tonight - and if you've ever wondered why they do,
:05:51. > :05:53.go to Newsround online