Share 'Delivering videos of lectures online - any suggestions?'

Hi there, I have been charged with investigating the above - namely finding the best way of showing our lectures in video format online. We do of course have a youtube channel (which we could use to show snippets) - but I am specifically talking about showing lectures in full (ie potentially up to an hour long). How do you guys do it? I don't have access to a media streaming server on site (at…