Madmart thanks for the update/confirmation on Skyfibernet pricing. Not sure about the TV service which at 65TL is more expensive than the comprehensive NTV 'English' service (14.99 euro or 50TL) and does not require the 'more' expensive MAG250 box (around £105) than most other android based TV boxes, available for as little as £22.
Not sure why people are taking the 6 or 8 mb service, when a 4mb will carry an HD TV stream and a few other simple low usage activities at the same time. If you are taking on Skyfiber or Finet then take on the lowest 4mb service, and if it does not have enough oomph for what you want, then check you are getting the 4mb (these are after all guaranteed services) and if you are then upgrade... no point in paying for something that you do not need.
I've still have time before I move from TTNET, and so I will take another look at Finet, which according to reports here indicate an improvement in service in the last few months, and their prices do look more attractive than Skyfiber.