Ben Levin offers an excellent, and free, program in music theory. 

His final five segments provide and excellent explanation and demonstration of modes: theory and practice.

Related Modes
https://www.youtube.com/watch?v=uMIfkf1adtg&list=PLJTWoPGfHxQH5zdZN6UlMPwZerVApkqmk&index=13

Parallel Modes
https://www.youtube.com/watch?v=L_EhDzd0NX4&list=PLJTWoPGfHxQH5zdZN6UlMPwZerVApkqmk&index=13

Chord Progressions in the Modes
https://www.youtube.com/watch?v=qf3OVX6ZLzU&list=PLJTWoPGfHxQH5zdZN6UlMPwZerVApkqmk&index=14

https://www.youtube.com/watch?v=o7aLJEMnepg&list=PLJTWoPGfHxQH5zdZN6UlMPwZerVApkqmk&index=16

Modal Interchange
https://www.youtube.com/watch?v=gvsuzlg9IGw&list=PLJTWoPGfHxQH5zdZN6UlMPwZerVApkqmk&index=17