I first watched this version on BBC 2 in the early 1980s. As soon as it came out on VHS I bought it, since then I have watched it many times over the years. I'm very pleased that it is obtainable in DVD format. I'm amazed at the negative criticisms and wrote this, (my first review) in defence of what is, in my opinion, the best I've seen. I suppose though you can't please everyone!
The quintet in Act 2 (See How the Fates Their Gifts Allot), with Stafford Dean, Clive Revill, Ann Collins, Cynthia Buchan and William Conrad, is second to none and is my favourite of any version. The singing and acting is far more worthy I dare say of more prosperity than A or B, gave it credit. I've seen many other versions since and in my opinion it is well worth buying and if you're a G&S fan, why not give it a try. You may be pleasantly surprised. (Included is 27 page booklet on the Mikado).