The second series of 8th Doctor radio adventures continue tonight with the fourth episode, The Skull of Sobek, broadcasting at 6pm on BBC radio seven. Paul McGann stars as the 8th Doctor in the episode and Sheridan Smith plays his companion Lucie Miller. The episode will be available on BBC iPlayer after it's broadcast and more information can be found here. Also don't forget that many Doctor Who and Torchwood stars including Freema Agyeman, Eve Myles and Russell Tovey will star in tonight's episodes of Little Dorrit. Little Dorrit will air at 6:15pm on BBC One, it was originally going air at 4:50pm but it has recently been rescheduled.