the old oak tree

[mikkin59]

at the beginning of 2000 there was a documentary on tv about the life of a 1000 yr old oak tree, from sapling to giant oak, it was narrated by tom baker.... does anyone know what it was called and if its available in the shops?
Ive tried searching on amazon and others but because i dont know what it was called im not having much luck.... any help will be much appreciated.