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NEW YORK - NBC is making it official: Michael J. Fox is coming back to series TV more than a decade after he left to concentrate on fighting Parkinson's disease.

His new comedy series, loosely based on his life, has a 22-episode commitment from NBC and is set to premiere in fall 2013, the network announced Monday.

Reports of Fox's plans to return with a new show emerged last week.

The 51-year-old actor was diagnosed with Parkinson's disease in 1991. He left his ABC comedy "Spin City" in 2000 saying he intended to focus on helping find a cure for the disease.

Since then, he has made guest appearances on series including "Rescue Me" and "The Good Wife." He first gained fame in the 1980s sitcom "Family Ties."