When would cable t.v. be reinstated after bill gone to debt collections?

Once the bill is paid in full to the collection agency, one of two things will happen. If they haven't already paid Sky, which I find unlikely, they will pay Sky and your credit rating will be adjusted. The other option is that they have already paid Sky and so only your credit rating will be updated. Either way, you will have to make your own arrangements with Sky Television to get your signal back and I'm sure they will want a healthy security deposit up front, maybe as much as one years subscription.