during rush hours, and was extended to 205th Street during non-rush hours. It replaced the AA as Eighth Avenue Local. The C ran express, from 205th Street to Bergen Street in Brooklyn during rush hours, running express on the Concourse Line in the peak direction. C trains left Bergen Street between 3:30 p.m. and 6:50 p.m., and left 205th Street between 6:33 a.m. and 11:26 a.m. C trains ran every 4 minutes during rush hours in the peak direction, and every 5 minutes in the reverse-peak direction, and ran with 6- and 7-car trains. During morning rush hours, CC trains operated to 205th Street until 7:30 a.m., and to Tremont Avenue between 7:30 a.m. and 11:30 a.m.. PM rush hour CC trains terminated at Bedford Park Boulevard, and several other trains terminated and originated at Bedford Park Boulevard. CC trains ran every 4 minutes during rush hours, 5 minutes during middays, every 5 and 6 trains during evenings, and every 12 minutes overnight. Trains ran with 5 cars during rush hours, and with 3 cars other times. On August 17, 1933, CC trains stopped terminating at Tremont Avenue. Beginning August 19, 1933, C service was cut back from Bergen Street, but started operating during non-rush hours. At the same time, CC service was cut back from 205th Street during non-rush hours. On January 1, 1936, C service was extended to Jay Street–Borough Hall. On April 9, 1936, C service was extended to Hoyt–Schermerhorn Streets. After July 1, 1937, a few C trains continued to run to Bergen Street southbound in the morning rush hour and northbound in the evening rush hour. Also on the same date, weekend C service was discontinued, and CC service was extended to 205th Street to compensate. IND Sixth Avenue Line opens On December 15, 1940, the IND Sixth Avenue Line opened. Two new services, the BB (later ) and , began running. These lines ran on the Eighth Avenue Line in upper Manhattan, switching to the Sixth Avenue Line in Midtown. The BB ran local to 168th Street during rush hours. The D joined the C as the peak direction Concourse Express. CC trains now ran between Hudson Terminal and Bedford Park during rush hours and on Saturdays and during other times, the D made local stops in the Bronx, replacing CC service. On the same date, limited morning rush hour service began between 205th