Noxon began his work on the National Geographic Specials in the mid-60s, producing and writing three of the first programs when they premiered on CBS.

In 1978 Noxon returned to Geographic where he wrote and produced the Emmy Award winning documentary "The Great Whales" and "The Sharks", one of the highest rated programs ever aired on PBS.

Productions he supervised there have included "Wolves Of The Sea" and "Dragons Of Galapagos" both winners of the prestigious Golden Panda at the Wildscreen Film Festival, "Heroes of the High Frontier", awarded the Emmy Award for best informational or cultural special of 1999-2000 and "Adventures in Time", the two-hour National Geographic Millennium Special which achieved winning ratings and critical acclaim on NBC.

His productions won many awards in television including several Emmys and numerous international honors.

In 2009 he received the International Documentary Association Pioneer Award, which is presented annually to an individual who has made an indelible impression on the evolving art and craft of nonfiction filmmaking.