The deal settled upon appears to involve Sky paying the lower carriage costs that they wanted, but with some other tweaks eg Sky taking back the TLC slot and putting Pick on there and more freedom for Discovery to run their business as they see fit.
Apparently, Pick is moving to 125, Challenge to 152 and TLC to 145.
Both parties are claiming victory, so I suspect, to reflect the fact that Discovery are being paid less than what they wanted, Sky have agreed to allow Discovery to have the increased control and flexibility that has been mentioned.
I suspect that this involves allowing them to make some of their channels FTA and have a suspicion that this is how UKTV managed to get Really, Drama and Yesterday onto Freesat.
As part of their contingency plans, Sky threw some money at PBS America to make some documentary programmes, which Sky, Freesat and Virgin Media customers will all be able to enjoy