21:43 UK launch time, launch will be webcast and hopefully landing the first stage on a barge! The camera feed from the barge will likely die just before touchdown (combination of ionisation from the rocket exhaust, and shaking the satfeed to buggery :v ), but reasonably chance of success and I imagine they'll backstream the footage as soon as it settles if they succeed.
Reddit thread with details and live updates:
https://www.reddit.com/r/spacex/comment ... iscussion/Webcast with commentary etc:
https://youtube.com/watch?v=7pUAydjne5MWebcast with only technical information, ground comms etc:
https://youtube.com/watch?v=sh8V0COrrzEThey'll probably go live ~20mins before launch