After Mike takes over from Neil attempting to nail plates to the table and Neil, Vyv and Rik kneel down, Rik asks Neil, "Is is me or is this table shrinking?" because he is kneeling down. When kneeling down the table would appear to have grown higher!

Also, (not so important) in the same episode, when the ghosts holding their heads are arguing, just before one of them shouts, "Kick him!" the sound appears to jump as if a short part of it has been cut and put back, you can mostly hear it from the audience laughter.