A lone sentence or two in the first presidential debate has raised an old question surrounding the wisdom of taxpayer dollars being used to support public television programs like Sesame Street.      Are childhood favorites Grover, Elmo and the Count in danger of being taken off the air?  In light of the fact that many parents struggle to find good educational programing for their children, should we be concerned at this?  Televison and movie critic Michael Medved looks at the issue and some of the facts verses political rhetoric surrounding talk of “targeting Big Bird.”