To purchase VHS of "ALICE..."

I am resident in the UK and would like to find reliable details about purchasing any proximate VHS release of this TV film, directed by Jonathan Miller and based on the Lewis Carroll story, stars include Peter Cook , John Gielgud and Anne-Marie Mallik in the title role.
Please send me sensible information concerning currency or how payment is to be made, I would prefer a homebased source but maybe the internet is the only place.
Thank you for kindness whoever decides to respond, a positive answer will make someone very happy indeed.
My email is [email protected]
The film was released circa 1967.