Christmas is long gone and some of its televisual pleasures have been explored in the CST blogs by Kenneth Longden (https://cstonline.net/bbc-christmas and https://cstonline.net/sherlock-abominable) and Lorna Jowett (https://cstonline.net/not-so-cosy). But one Christmas special which began on Boxing Day on BBC1 still lingers on. Dickensian (Red Planet Pictures) made the usual Christmas use of a Charles Dickens’