There is a theory (I think it is called game theory cut I may be wrong) that earliest memories are usually of 2 types, ones that you really do experience and ones that through gathered stories and being told certain things over a number of years from a young age, culminate in the belief that it is your own memory.
I believe that the way to tell the difference is whether when you recall the memory you see yourself in the memory (i.e. as an object/entity within the recollection) or whether you see the recollection from within yourself looking out.
Either way, the Mary Rose was lifted in 1982 but has been part of an archaeological site � and therefore national interest � in the modern era since 1971 when it was rediscovered. Although the wreck was also investigated in 1836-1840.
As heathfield said I am sure many many programmes were made on the MR during that time and lots of news articles for that time � it was a big event. And it is possible that the programmes would have been repeated.