C-SPAN Classroom has long been one of my go-to recommendations for social studies teachers. It’s particularly good for those who are developing lessons about civics and government. Bell Ringers is one of the many good resources that C-SPAN Classroom provides for free to all teachers.
Applications for Education
Bell Ringers are equally suitable for in-person and online classrooms. In an online classroom I’d have students watch the videos and answer questions independently in Google Classroom then bring the group together in Zoom to discuss a few responses. Without making them write answers before discussion some students would probably avoid watching or participating as the videos themselves aren’t terribly entertaining even though they are quite informative.