Article on the Official Charts website says that Katie Thistleton is doing the chart on Christmas Day?
“Tune in to The Official Chart with Katie Thistleton on BBC Radio 1 on December 25 from 2-4pm to hear the Christmas Top 40 countdown and the exclusive reveal of the winner of the Official Christmas Number 1 2020.”
https://www.officialcharts.com/chart-news/christmas-number-1-2020-the-contenders-revealed__31728/?utm_medium=email&utm_campaign=27-11-2020 The Official Word&utm_content=27-11-2020 The Official Word+CID_73b14dcfdf48bad847bbb16cdf717b92&utm_source=CampaignMonitor