It is a 30 minute animation made to mark the 30th anniversary of the first airing of the original Snowman which featured the wonderful voice of Peter Auty (who was not credited on the original version)
The Snowman and The Snowdog was every bit as good as the original Snowman in my opinion. It is a beautifully animated imaginary story of a young boy and his pet dog. I must admit to getting emotional at times while watching it, there is no doubt that the writer has lost a dearly loved dog at some stage because it could not have made in such a touching way if not. The picture on the mantelpiece, the collar, the lead still hung up in its usual place, all these things struck an emotional chord with me which is amazing considering all the characters were fictional cartoon drawings.
This is a real Christmas classic and I highly recommend it. If you have ever lost a dog which meant a lot to you, I challenge you not to get a little bit emotional while watching.