In an era where 3D TV and movies are commonplace, the concept of the BBC doing a week of three-dimensional telly as if it was the most amazing scientific breakthrough since the invention of the wheel is unimaginable.

Likewise, in an age where Doctor Who is one of the channel’s highest-rated and most bankable shows, it’s difficult to picture the backwaters of 1993, when it had been off-air for four years and was dismissed as an outdated joke.

Most difficult to conceive of all is the notion that somehow, combining 3D TV, Doctor Who and the Beeb’s flagship soap opera EastEnders was a good idea. Yet for Children in Need that year, that’s precisely what happened. Here – with ‘helpful’ programme notes from the YouTube uploader – is Dimensions in Time…