Towards the end of the episode, Jonathan and Carla discover that the tree in the woods now has four holes in it that were not there previously. The holes are made by a garden fork being pushed through the torso of one of the characters as it turns out, yet there is no evidence of any blood of any kind, either embedded in the holes (as there would surely be) or anywhere in the vicinity. Considering the method of murder, the fact that the victim was attached to the tree for some time, and the subsequent hiding of the body, blood would be everywhere.
Jonathan [ to Carla ]: Another ratings winner there, then. Mr Eric Blair, king of the reality format. What's next? Celebrity Suicides? Leaping to their death off Wigan Pier?
(Adam is appearing in the reality show "Animal Farm" and is in a pig pen.)
Jonathan: So. How's it, er… going here anyway?
Adam: You have no idea do you – what they're putting us through in the name of entertainment? I'm drinking pigs' milk, Jonathan.
Jonathan: I'm sure it's not that bad.
Adam: I'm drinking pigs' milk, straight from the pig!
Jonathan: So, you've made that all-important transition then. From crime coverage to popular callisthenics.
Carla: Assisted by our cross-promotional strategy with a leading cosmetics firm. With every video, a set of delicately scented face wipes, 'cause it may get a bit sticky once you're up to speed. [ to customer ] OK. Lots of luck with it then. Have fun.
Jonathan [ reading box cover ]: You too can shed pounds with my triple whammy. Just follow me on screen and simply stretch, squeeze and shake it off?
Carla: What's your point?
Jonathan: Apart from a few dimwitted pumpers with more money than sense, who do you think mainly buys these things?
Carla: I haven't a clue what you're insinuating.
Jonathan: All I'm saying is if you put a tape like this in the shops with a free box of tissues, it may not give off the signals you intend.
Jonathan: Oh will you not go waltzing off like Jim Hawkins!
He's referring to the narrator of the famous book, Treasure Island, by Robert Louis Stevenson. He's an odd character, in that the reader finds out little about him during the book. The reference here is to Jim's actions – foolhardy ones (as Carla goes off into the wood) – where he leaves the ship and later the stockade at risk to himself.
As Jonathan mentions, another assumed name for a character in the episode, this time taken from a 14th century landowner and rebel against the English rule of Wales. His name is properly Owain Glyndwr and he was crowned Owain IV of Wales, the last Welsh person to hold the title of Prince of Wales.
The name of the band and, as Jonathan points out, the name of the inventor of the seed drill. The original Jethro Tull was born in Basildon in 1674 and died in 1741. He invented the seed drill in 1701, which allowed farmers to sow seeds by creating a hole of a specific size, dropping in a seed and covering it over. Until then seeds had been sown by casting them on the ground to grow where they landed.
Seen on the album cover and a plot point in assumed names. This is the stage name of the famous singer, whose real name is Arnold George Dorsey. He took his stage name from the German composer, who wrote, amongst other things, the opera Hansel and Gretel. Humperdinck the singer is famous for such hits as Release Me and There Goes My Everything.