There are scores of science channels on YouTube and a fair number of geology-themed ones. Here's a sampling of geo channels with a fair amount of high quality content. Do you have any others you'd like to recommend?
British Geological Survey
U.S. Geological Survey
IRIS Education & Outreach
Instituto Nazionale di Geofisica e Vulcanologia
Hawai'i Volcanoes National Park
Imaggeo on Mondays: a storm is coming
2 days ago