Lectures about a huge variety of topics are offered by OneDayUniversity. There's an $8/month fee, so check the sample videos to see if you want to invest.
https://www.onedayu.com/membership/
And don't forget that you can always listen to free lectures and even take free courses on your own time at the top universities in the country. https://www.edx.org/ or https://www.coursera.org/
Lots of theater, streaming
[UPDATE] TimeOut is a great source for what's playing that you can tap into. Check it out at
https://www.timeout.com/newyork/theater/the-best-theater-to-watch-online-may-16-may-17