World Enough and Time

The narrator is Joan Bakewell in voice-over. And you get the on-screen montages of nature burgeoning, flowers blooming, wildlife shagging, & c, whenever she's reading. Considering how long ago it was made, it's far more risqué in places than the 1990s version, but I suspect that's because the 1990s TV movie version was made with an eye to US cinema release. US cinema seems happier with violence than it is with sexual references.