I'm interested in learning history on my free time but I have no idea where to start. I wanna get insight into ancient Egypt, ancient Greece, all the way through to religious conquests and crusades, and so on up until medieval times and onto the world wars.
I don't think there would be such an exhaustive video detailing all these time periods of Arabia, Europe and all that so where should I start? Is there a specific linear timeline I should follow?
https://www.youtube.com/user/crashcourse - look at their first world history series.
There is currently a discussion on how good/accurate they are here: http://www.reddit.com/r/AskHistorians/comments/2bea1t/how_reliable_is_crashcourse_history/
There was a British series called 'Connections' that did just what you are asking.
http://www.youtube.com/playlist?list=PL023BCE5134243987&feature=plcp This is the history of ancient Greece told in a lecture format, cut into about 1 hour episodes. I know it doesn't cover the worlds' history, but it is quite interesting nonetheless. I would recommend podcasts, there are a few I can link you. http://www.republicandempire.com/the-french-revolution/previous/4 - French Revolution. http://thehistoryofbyzantium.com/2012/05/ - The History of Byzantium. http://thehistoryofpodcast.blogspot.com/search?updated-min=2011-01-01T00:00:00-08:00&updated-max=2012-01-01T00:00:00-08:00&max-results=36 - Alexander, Hannibal, and the Arab Spring. http://podcasthistoryofourworld.blogspot.com/p/history-podcasts.html - The podcast history of our world. And of course, http://thehistoryofrome.typepad.com/ - The History of Rome. I hope this helps and you find them as fascinating as I do.
I enjoy the Great Courses series, available from Audible. They are 12-24 hour lecture series written and performed by respected professors. They're not perfect, but it's a very easy way to get a basic level of knowledge in a given area during one's spare time.
For interesting historical tidbits you should absolutely check out Lindybeige on Youtube. He's a historian who has an interesting insight into the finer points of history, though he doesn't talk about the broader picture too often. Favorite by far.