a useful resource: researchseminars.org
Brookhaven Neutrino Theory Virtual Seminar, Mondays at 12.00 pm EDT (link to bluejeans)
CCAPP seminars, Tuesdays @11.30am EDT (link to Zoom)
Perimeter seminar series, Particle Physics Tue at 11:00 am EDT
Princeton "Pheno and Vino" seminar, Tuesdays at 4:00pm EDT (link to Zoom)
BSM pandemic seminars, Wednesdays at 2pm EDT
HEP Virtual seminar series , mostly Wednesdays at 12pm CDT
SLAC Theory Seminars (Wednesdays 1:30pm-2:30pm, Fridays 12:30pm-1:30pm PT) - Link to Zoom (Meeting ID: 763 419 698)
COFI seminar series (link to Zoom)
Fermilab Theoretical Physics Seminar, Thursdays at 2:30 p.m. CDT (link to Zoom)
Fermilab "Wine and Cheese Seminar", Fridays at 4:00 p.m CDT
N3AS Online Seminar (UC Berkeley), Tuesdays 1:30 Pacific Time (link to website)
On-line “Newton 1665” seminars, varying times and dates
EuCapt virtual colloquium, once a month, @11:00 CET
Elusives-Invisibles Plus Virtual Institute, ~ twice a month on Tuesdays @15:00 CET
VP^3 seminars, ~ twice a month on Tuesdays @4pm CET
CERN online seminars and discussions webpage
Lawphysics (Latin American Webinars on Physics), ~once a month on Wednesdays @15.00 UTC
A youtube channel created by Shaun Hotchkiss (University of Auckland) featuring talks on Cosmology (not a live broadcast - new talks added on Friday mornings GMT)