Hi,
I can understand people's frustration with Sky's appalling usage of irrelevent and unimpressive voice-overs, but in all honesty, I wouldn't trust Sky to understand whether they knew if a show was having its final episode aired or not.
I have to say, in most cases, fans of a show will normally access the AVForums or Epguides.com to see how many episodes a particular show has. Also, Sky don't announce when the next season of a show will air, as sometimes they don't, won't or can't buy the next series, due to whatever lousy reason they give, and it's then left for other channels to pick up the mess. See "Alias" as one good example of what happens to a good show, that Sky decided wasn't good enough! "NYPD Blue" on Channel Whore is another good example. Fans often know more about when a show is likely to return to a particular channel, than the channel that physically airs it in the UK!

That's why I try to post as much news (and read as much) from websites, where I know the people providing the information, are likely to know what they're talking about!
Pooch