As it's relevant to this discussion, I have a reel of genuine WF100 copper/copper coaxial cable if anyone needs some. It has the lowest loss of all the standard "100" type cables. It's way better than the steel-cored stuff sold in Greece. It can make the difference between picture and no picture.
I can repair simple faults on receivers, (having repaired in excess of 25,000 when I worked in the industry). I don't have the equipment to carry out complex fault diagnosis, here on Crete. I have previously fixed "broken 2nd inputs" but success rate depends on make/model and the nature of the damage. "Dead" power supplies can usually be fixed.
I'm officially retired so I do this as a hobby, not a business, and usually prefer to barter.
Lots of info. here:-http://www.satcure.co.uk