I have seen a few of those and do find them quite sad sometimes. I've only recently seen them though, so i don't know if the format or filming has changed. I wonder whether your recent experiences have made you more sensitive to it? I'm definitely more emotional about things like that as I've got older and particularly, since i had children.
Well the latest episode was about death - I found it very moving and showed compassion that made my eyes sting, especially with the terminally ill lady.