Unsurprisingly, things don’t always go to plan when making TV shows.
Careless shots reveal cameramen in the background of scenes and stand-ins for actors are sometimes left in the frame.
Continuity gaffs are always common – especially in long-running TV shows.
Sometimes the glaring mistakes actually happen in the promotional material, such as on posters or in trailers.
Although no show can be perfect all of the time, it’s sometimes baffling how some of these mistakes managed to stay in.
But at least it makes for amusing viewing, once you’ve spotted the mistakes.
Click through to see some of the most glaring TV errors of all time.