I don't often feel the need to big up something done by my colleagues (not that I couldn't every day, it would just get boring) but all this month the BBC News website's running a series on 60 years of British public information films.

They've unearthed some real gems, such as a semi-naked Rolf Harris on teaching kids to swim, the fixtastic Jimmy Savile on the importance of wearing seatbelts, and a cartoon about coastguardswhich I've seen on TV in the last five years, despite it having been made in the late 60s.

It's interesting how many of the ads concern themselves with water - or perhaps not, considering our island status.

But it's a theme continued in the best of the bunch so far, a cautionary tale about the dangers of lonely water. Voiced by scaremeister-general and one-time 007 foe Donald Pleasence as the very grimmest of reapers, it's creepier than the majority of modern horror movies.

Don't watch it before bed...