Millar and Gough's work also spans the world of television. The duo created and served as executive producers of the critically acclaimed action-adventure series "Smallville", which aired from 2001-2011. It is the longest-running comic book-based television series of all time, and was the No. 1 show in the history of the WB Television Network. Millar and Gough left the series in 2008, after seven seasons, breaking the news of their departure with an open letter posted to a "Smallville" fan site. In 2010, Millar and Gough filed a multimillion-dollar lawsuit against the WB Television Network, claiming the company had licensed "Smallville" to its co-owned WB and CW networks for excessively low fees, thereby cutting Millar and Gough out of tens of millions of dollars. The lawsuit was finally settled in May 2013, mere weeks before a scheduled June trial; the terms of the settlement were not made public.