2.TEDx: This is a series of TED talks, led by local activists and organizers, whose topics are usually more specific and localized.
3. Mother: This is a non-profit organization, and their speeches are usually true and impromptu, with topics including life stories and personal experiences.
The Daily Show: This is an American news program, and the host will make some impromptu interviews and comments.
5.SaturdayNightLive: This is an American comedy program, and their hosts and guests will make some impromptu performances and comments.
6.《JimmyKimmelLive！ This is an American talk show, and their host will do some impromptu interviews and performances.
7. This is an American news program, and the host john oliver will make some impromptu comments and analysis.
8.ConanO'Brien: This is an American talk show, and the host Conano 'Brien will do some impromptu interviews and performances.
9. ThelateShowwithStephenColbert: This is an American talk show, and the host StephenColbert will do some impromptu interviews and performances.
10.EllenDeGeneres program: This is an American talk show, and the host ellen degeneres will give some impromptu interviews and performances.