were "full of" anthology shows; other examples included Play for Today, Beasts and Armchair Thriller. More recently, anthologies have become less popular with television executives, but the writers hope that they may be able to contribute to a "renaissance" for the genre. According to journalist and broadcaster Mark Lawson, this is because anthologies can fail to motivate viewers to stay with a series, and, further, new sets and casts must be paid for each episode, meaning that a six-part anthology series will generally be more expensive than a six-part series in a more standard format. For Lawson, Inside No. 9 was able to overcome these problems through the "pleasing coherence" offered by the fact each episode was set in a number 9, and "the wit and inventiveness" of the opening episodes, which could sufficiently engage viewers. Pemberton and Shearsmith had originally considered alternative ways to link the stories, such as all the settings having a shared post man, but then decided that such a strong relationship between stories was not needed. Inspiration and production varied from instalment to instalment, and each was filmed separately, taking less than a week per episode. After Shearsmith and Pemberton had decided that each episode would be about confinement, and having written some of the later episodes, they were inspired by a wardrobe in their working space for "Sardines". The writers were keen to see how confined they could make the characters, aiming to induce feelings of claustrophobia in viewers. The anthology format allowed Pemberton and Shearsmith to revisit prior ideas, which is what they did with "A Quiet Night In" and "Tom & Gerri". The former was inspired by the writers' efforts to include a long segment without dialogue in an episode of Psychoville. Both episodes followed break-ins. The Pinteresque "Tom & Gerri" was based upon a play written by Pemberton and Shearsmith while the pair were living together and job seeking. The setting was based upon their own flat, while the character Tom's development evoked the experience of job-hunting. "Last Gasp" was inspired by a person Pemberton had seen on Multi-Coloured Swap Shop who collected jars of air, as well as the death of Michael Jackson and the death of Amy Winehouse. "The Understudy", the plot of which is partially based upon and concerns Macbeth, took longer to write than any other episode; the writers rewrote the script several times, as they were