For a long time now, MIT has its Open Lectures project. In it, you can scroll between many courses and even watch classes in some of them. This is a great study material that can help you out (for me it has helped).

 I'll list some of the courses that have video resources:

• Linear Algebra
  
• Mathematical Methods for Engineers
• Mathematical Methods for Engineers II
• Differential Equations
• Physics I: Classical Mechanics
• Electricity and Magnetism
• Physics III: Vibrations and Waves
• Introduction to Biology
• Introductory Biology
• Principles of Chemical Science
• Media, Education, and the Marketplace
• Circuits and Electronics
• Computer System Engineering
• Introduction to Algorithms
• Principles of Digital Communication II
• Introduction to Copyright Law
• Atomistic Computer Modeling of Materials
• Symmetry, Structure, and Tensor Properties of Materials