You can't wing it on live interactive television or you will get wung out. Look around you 360 degrees. There are teaching artifacts everywhere. Laugh at yourself frequently on interactive television. You are the biggest joke.
Students are more interested in people than things.
Let them know who you are. Develop a personal signature that sets the stage for every class. Take some chances by trying new ideas. If they bomb, find out why. If they succeed, find out why.