There's a lot of 'Praed/Connery almost died here due to drowning or being actually whacked over the head' and 'here's where we nearly burned down the castle because we used heavy lighting and plastic cladding in close combination. Maybe on reflection we shouldn't have done that' and 'We didn't tell them the nuns would be Satan worshippers so they let us use the cathedral for filming.'

The best one is where a guest star sympathetically said to Richard O'Brien after learning he'd been in the Rocky Horror Picture Show, 'Well we all do stuff we're embarassed about afterwards! But you've got to pay the bills.' Without knowing he'd written the thing....

ETA: Plus endless stuff about weather and huddling in the rains. And bits about 'we may have looked like we were having fun but I nearly got hypothermia from the water.' And you get to hear a lot about trousers splitting as they ran through the woods.