Shcachar Lovett has put together a new website aggregating information about virtual talks in CS theory: https://cstheorytalks.wordpress.com/
It has a Google calendar that people can add to their own, and a form to submit a new talk that automatically gets added to the Google calendar.
This can be a fantastic resource these days that almost no one can travel – please publicize this and also submit to it talks that you are organizing.
Windows On Theory 
In related news: during the Covid-19 crisis and as people are self-isolated and confined home, TCS+ (https://sites.google.com/site/plustcs/) has switched to a weekly format (instead of every other week).
Thanks Clement!