I hear Showtime‘s cancer comedy The Big C will make it a full circle with a pickup for a fourth and final season. There has been chatter recently about the series starring Laura Linney coming to an end. Showtime brass are expected to address the issue at the network’s TCA executive session this afternoon. I hear The Big C was designed to run for four seasons, with each season chronicling a calendar season of Cathy’s (Linney) life following her cancer diagnosis. The producers of the Sony TV series have stuck to the template for the first three cycles and are expected to close the storyline a year after it started. The Big C, created by Darlene Hunt and run by Jenny Bicks, had a strong ratings start, tapering off in Seasons 2 and 3. It earned star Linney a Golden Globe and an Emmy nomination. The Big C would be one of two Showtime comedies renewed for a final season, along with veteran Weeds.