 "Take a Giant Step" was a live-action Saturday morning show in which three unknown teens hosted. They explored different themes relevant to their target audience, for which they had gathered advance information rather meticulously. When the show returned the following fall the title became "Talking With a Giant," which was trimmed to only half an hour but was a little lighter in tone as the teenage hosts interviewed major stars (In one episode I do remember, Doc Severinson was a guest and played his trumpet).