All of the LIVES are recorded for those who can't watch them LIVE or who want to revisit a particular LIVE event. Go to LEARN on the big purple bar at the top of any webpage. When the Main LEARN page opens, scroll down the left menu bars until you see SEARCH BY CLASSROOM and you'll see them listed by the person doing live, (Alex, Dee, etc...). Click on the one you are looking for and another page will open listing all the LIVE topics that person has done and then simply scroll through.
You can also search in the main search bar at the top. Just type LIVE and when the results page opens, select the LEARN tab and you'll see a listing of LIVES. However, you will also get any result that has LIVES in it as well.