There are many good sources of gardening related videos. Both Oklahoma State and Kansas State Extension Services have useful ones covering a wide range of topics. They are designed and presented with good visuals and are easy to understand.
Kansas State University Extension has an excellent selection of over 100 "how-to videos". These videos are divided into categories by topic or by season. Click on the link below to go to this site.
Kansas State Horticultural Videos
Oklahoma State Extension Service also has a wide range of helpful videos. These videos were created in conjunction with the OSU produced TV show, Oklahoma Gardening, which is aired on PBS each weekend. The short videos are instructional for both a wide range of gardening topics as well as on healthy cooking. Access to these videos is from either the links below.
Oklahoma Gardening website
Oklahoma Gardening section on You Tube.