Since posting about this, the UK market has got a lot meaner.
There is only about a 45 min window now, which opens a little after 1AM UK time - and is closed again between 1.45 and 2AM. With that in mind, you have to be right on it to farm any serious tokens. When the vids are a few mins long you are lucky if you can farm an extra 3 or 4 tokens. At the moment the vid is 30 seconds long and if I am lucky I can get around 20-25 a day now, but in all honesty, that's only on a good day and its not worth the effort for me any more as Im over 13,000 tokens. Add to the fact that 1AM isn't the most sociable time of the day, (Im almost always awake due to work commitments) its just not feasible or practical for people to really farm much any more.
My main target now is watching videos from Facebook (and off my Iphone and my Ipad) for top eleven money seeing as the cap has now been removed. I can watch vids throughout the day and they are never longer than 40 seconds tops, so unlike the farming its possible to get more than a few a day. So far this season I've been able to more than cover my wages every day by watching videos, leading to my cash to grow very quickly, which will serve me well as I get higher up, as its well documented that money becomes a major issue.