I have to be honest, I purchased a Merlin Tarantula Fig 8 before the What Hi Fi review. It was to go on my Sony 46HX803. I was so pleased with it!! Pictures on my upscaling DVD player and Blu Ray were definitely improved!! The next step was obviously SKY HD. Having had it on for roughly 6 weeks, the picture is a massive improvement. The menu for example is a lot drjer (blue) with crisp wording and edging.
I bought mine direct from Merlin on a well known online auction website. The cable is £40 with £4 postage and packaging. They do have a 'best offer' option, which on both times I offered the minimum of £35.00, which was accepted. Delivery took roughly 3 days. Excellent service.