PragerU, or Prager University, was developed by Dennis Prager. It features short videos on a variety of topics from a conservative viewpoint. Here is a link to the PragerU YouTube channel. Its website is PragerU.com
Here are some sample PragerU videos:
Olga Meshoe on Does Israel Discriminate Against Arabs?, 25 September 2017
Dinesh D’Souza on Multiculturalism, 18 September 2017.
If You Live In Freedom, Thank The British Empire – with H.W. Crocker III, 11 September 2017
Does Free Speech Offend You? – 30 August 2015