https://www.theguardian.com/business/2020/nov/23/black-friday-2020-the-best-early-deals-and-bargains-uk-retailers

Some of the discounts UK retailers such as Tesco, Argos, Asda and Aldi are offering

The Black Friday sale no longer lasts only a day – retailers have already started discounting in the run-up to 27 November.