24, the smash-hit show starring Kiefer Sutherland as counter-terrorism agent Jack Bauer, is back tonight with 24: Live Another Day. Set some 4 odd years after the events of Season 8, Live Another Day sees a shift from the 24 episode format of old, while still retaining the real-time action. It also sees the show leave the United States for the very first time. Oh yeah, this time it's going down in London!

The good news is that 24 fans new and old have a bunch of content to gorge on from iTunes, Amazon and Netflix depending where in the world you are. At 24 episodes a season, 8 seasons and a special one-off episode, that's a lot of Bauer to relive! Since each season saw us experience a day in the life, there's a lot to go through! So, whether your poison is iTunes, Amazon or Netflix, hit the links below for all the classic 24 you can handle. The new season is already loaded up in iTunes to pre-order and receive each episode after it airs.

Also, at the time of writing, iTunes is running a promo where the first episode in every season is free to download. So if you're brand new to 24, there's a great excuse to dip your toe!

iTunes

Netflix (UK, Ireland, and Canada)

Amazon Instant (U.S. and UK)

Are you a 24 fan? If so, which seasons — and moments — were your favorite? And what are your thoughts on 24: Live Another Day?