Wikipedia clarifies: "Frisch's Big Boy is a regional Big Boy restaurant chain with headquarters in Cincinnati, Ohio. For many years a Big Boy franchisee, today Frisch's is the exclusive owner of Big Boy in Indiana, Kentucky, and most of Ohio and Tennessee and has no affiliation with Big Boy Restaurants International. In August 2014, there were 121 restaurants in Indiana, Kentucky, and Ohio. Frisch's is the oldest, longest surviving regional Big Boy operator, excluding Bob's Big Boy in California, which was the original Big Boy restaurant and franchisor.
"Frisch's previously owned numerous Golden Corral restaurants in Indiana, Kentucky, Ohio, Pennsylvania, and West Virginia but after closing six underperforming stores in 2011, Frisch's sold the remainder in March 2012."