In an earlier post, I have referred to the Upscaler device from City Skys which lets you connect a QL to a flat screen TV with HDMI input via a SCART cable from the QL. This unit actually allowed a QL to display the full 85 characters on such sets used as monitors.
However, the particular unit I mentioned was not available in some countries.
A user on QL Forum (jimre) has found an equivalent unit available in several European countries, at:
Read his post about this at http://qlforum.co.uk/viewtopic.php?f=2&t=770&start=40 where he has also posted a link to some pictures he took of the display he got using this unit to connect a QL to a Samsung TV/Monitor.
At the time of writing the price was €55,00 plus delivery cost.