Video resources are great for supporting classroom instruction. I've used United Streaming from Discovery Education for several years and found it to be very helpful in reinforcing lessons. Teacher Tube is quite useful for teachers to learn new ideas and see what other teachers around the world are doing.
I searched Blinkx to find these You Tube videos. The first one is the nursery rhyme - "Twinkle, Twinkle Little Star" that can be used to help students develop phonemic awareness skills.
The second one is "Heidisongs Singable Songs" that can be used when teaching shapes.