When does Petticoat Junction return?

Petticoat Junction is an American television sitcom that originally aired on CBS from September 1963 to April 1970. The series is one of three interrelated shows about rural characters produced by Paul Henning. The success of the series led to a spin-off, Green Acres (1965–1971)
The show centers on the goings-on at the rural Shady Rest Hotel. Widowed Kate Bradley (Bea Benaderet) is the proprietress. Her lazy but lovable Uncle Joe Carson (Edgar Buchanan) supposedly helps her in the day-to-day running of the hotel. Early on, much of the show also focuses on the Hooterville Cannonball, an 1890s vintage steam-driven train.