northshields

I have a 32LQ63 model and had always thought that I should be able to watch catch-up tv from the previous 7 days direct from the epg. However, I cannot for the life of me get that to work. Whatever I do, whenever I am in the epg I can only get it to move forwards rather than back. I can watch catch-up tv from Freeview Channel 100, but I would like to be able to do so from the epg. What am I missing?