Check out YouTube’s TestTube! I haven’t had the chance to try it yet, but maybe you can and let me know how well this works. In the TestTube, there are 4 options — Active Sharing, AudioSwap, Remixer, and Streams. The most intersting module for me would be the Remixer, where you can add text, audio, graphics, overlays, effects, and transitions to your videos to make it more professional.