Those Virgin Media customers looking to catch up with the series they've missed whilst Sky1 has been away will be pleased to hear that Sky 2 will be screening extensive repeats of a number of series, starting November 16th.
Prison Break: from Sunday 23rd November and every day that week at 23:00 on Sky2.
24: Day 6: With the premiere of "24: Redemption" on Sky1 on Monday 24th November at 22:00, Sky2 are offering 24: Day 6 the entire series on Saturday 23rd November.
Stargate Atlantis: The first 15 episodes of series 5
They also repeating episodes of JJ Abrams new series Fringe, which I've seen and can recommend. Starting Sunday 16th November, and continuing the rest of that week, at 23:00 on Sky2.
No word yet on seasons 4 of Lost or Battlestar, but they're not due back with new series until the new year so they hopefully will follow.