If you are or planning to be working on WCF, I am sure you need to spend some time learning on what is WCF. There is a good collection of Video Training Resources on WCF. I have attempted to make a list of training videos on WCF which is already available out there. Hope you find this list useful. These are free online Training material for WCF.
Here is a collection of WCF Video Tutorials. WCF Free Training Videos