[PeterM]

Thanks indeed Colin,
I am up to Ceres, already getting comments about how terrific it looks and how sorry they never started. In fact if any are interested seems you can start even now as two others I know have this last fortnight. Just contact your local newsagent. You will have to fork out nearly $300 up front to get to issue 20 but it can be done.
From reading Colins clues you can easily find the forum of Sir Caldwell-Moore's TV series with the same name that started in 1958 (the longest running show in the world with the same presenter).
There is some wonderful advice on there with more than 400 posts on this topic from people who have been where we are going and solved most issues along the way. I am particularly looking forward to our next issue with the planet Jupiter. Many have commented that the Great Red Spot looks like a pair of lips and they have tidied this up this with a red texta pen. Wonder if it has been fixed since the UK got theirs?
Seems the Earth/Moon gear problem some were having may come down to overtightening the grub screw that locks the Earth support arm. Many have commented that loosening off the grub screw and /or lifting the plastic bush that the vertical Earth support sits in (by up to 1mm) helps.
PeterM