The archive of the stream can be found here: https://www.youtube.com/watch?v=es_4dXrQkpA
Today at 12pm pacific, IGN and the Video Game History Foundation are teaming up for a 5 hour stream of them playing "a slew of rare things, including canceled games, unreleased consoles, forgotten preview builds, and much more." This is also a fundraising event for VGHF which looks like it perserves old games and consoles. I don't know much about the charity, but the event seems pretty cool. I will be checking it out.
For more info on how to watch it, go here: