All good points, Lemming and Mongoose. I would skip the idea of artificial lighting for test matches - the idea might have been right, but it led to some dissatisfaction in South Africa, and there certainly are some points which the players made which may be valid - for example, the fact that they use a red ball in tests whereas for day-nighters a white ball was specifically developed.
The slow over rate discussion is one which we have had here a few times before, and I put together some figures for the achievements of both sides in the recent England tour of South Africa. Mongoose: England don't come out of that looking good! All your criticism above is of non-English sides, but England are no angels themselves! Like you, I would like to see some real action being taken by the authorities against slow over rates in tests - again, that's been addressed, though never concluded on, in other discussions here.
This is the last thread which I can find on the subject from the SA tour - link
here - and this thread, in which I included some calculations of average time to deliver an over during the series also comes from the SA tour - link
here.
I'm happy enough to monitor the situation in the forthcoming England series against Bangladesh and Australia if anyone is interested. With the Excel template already set up, it's not difficult. If you want me to do this, just stick a note below (one is enough!) and I'll open an over rates thread when the series commences.