NASA Play-by-Play
Great piece on NPR yesterday:
All Things Considered, September 13, 2006 · Astronauts working on the International Space Station lost another screw today — but they made it through a seven-hour spacewalk. NASA provided coverage, with commentary, of the entire event. That got producer Jeremy Hobson thinking what it would be like to have a "color guy" to spice up NASA’s coverage.
You’ve got to listen to the podcast yourself.
Complete STS-115 and ISS coverage is on NASA TV.