This Channel 4 show was as inconclusive as you'd expect it to be, but also as interesting. It was about heart transplant patients noticing extreme personality or taste changes after their operations - often in line with the personality of their donor. The story of one lady was simply astounding - or, I guess, fake. At first, the changes were minor (she answered 'I'd kill for a beer' when asked at a press conference what she'd most like to do now she's well again and, guess what, she doesn't even like beer) but then she had a dream about a man on a motorcycle called Tim L. Her donor was called Tim L-something, and died in a motorcycle accident.
There were a few psychologists and doctors talking about the heart's 'little brain' and neuron networks, but basically the very idea that memories can be transplanted with the heart is completely rejected by 95% of scientists. All we can say at the moment is, 'more things in heaven and earth' and all that.