I fondly recall this show from my youth. I remember that in parts it had a dark and menacing quality and it left an indelible mark in my mind. In particular I recall one scene where the "clown" appears. For a young boy, as I was then, it really was a powerful moment. How gratifying to finally find this show (with it's correct title - something I couldn't quite remember after so many years) listed on the Internet at IMDb. I hadn't realized it was written by one of Britain's greatest TV writers, Brian Clemens. Sadly, I suspect the tapes of this fine show were probably lost decades ago and we will never see it released on DVD. But boy does it bring back wonderful memories. For mine, The Mask of the Clown was a seminal moment in the Golden Years of Television. 2014 Note: According to the website lostshows.com all episodes of The Mask of the Clown are still in existence!