This will either be TV gold or the moment that Supernatural, now in its 13th season, will well and truly jump the shark.

A forthcoming episode will see brothers Sam (Jared Padalecki) and Dean (Jensen Ackles) pulled into a 1970's episode of Scooby-Doo called 'A Night of Fright Is No Delight'.

New pictures of the crossover have been released and see Dean taking quite a shining to Daphne while Sam and Velma are also seen hanging out.

Here's a teaser that was dropped earlier in the month:

The episode will air on The CW in the US on March 29, and on E4 in the UK and Ireland at a later date.