What to watch this weekend.

Strictly Come Dancing
Saturday & Sunday, BBC One
The semi-final sees Bill, HRVY, Jamie, Maisie and Ranvir take to the dancefloor once again demonstrate their skills. The contestants face two dances apiece as they try to win the favour of judges Shirley Ballas, Motsi Mabuse and Craig Revel Horwood - and the viewers at home - if they are to be in with a chance of winning.
I'm A Celebrity... A Castle Story
Sunday, ITV
Ant and Dec and the cast of 2020 take a look back at the highs and lows of their experience. Cameras focus on some of those tasks which pushed the likes of Jordan North, Shane Richie and Vernon Kay to their limits. Plus, a look at Giovanna Fletcher's success as Queen of the Castle.
Des O'Connor: The Ultimate Entertainer
Sunday, ITV
A tribute to the longest-serving prime time TV host of all time, who topped theatre bills globally, including more than a thousand solo appearances at the London Palladium.
Mortimer & Whitehouse: Gone Christmas Fishing
Sunday, BBC Two
Bob Mortimer returns to his childhood roots in Middlesbrough to fish the River Esk and Tees with his friend and angling mentor Paul Whitehouse. As well as trying to catch the glorious grayling, Bob is also going to try to ignite the joy of Christmas in Paul, who thinks the magic of the season has been long lost to commercialism.
The Christmas Misadventures Of Romesh Ranganathan
Sunday, BBC Two
Now, in a year when travel abroad has been all but forbidden, he is heading to the Hebrides to find out if you can really have a proper adventure so close to home, spending a week visiting the isles of Skye, Harris and Lewis. Guiding him through the journey will be Donald Macsween, or Sweeney to his friends, a local crofter from the far north of Lewis - a place that lies as far north as Greenland.