Express service began on weekends on March 5 , 1944 ; daytime non-peak operation began on November 9 , 1959 .
It was limited to weekdays only until April 28 , 1966 .
Express service began on weekends on March 5 , 1944 ; daytime non-peak operation began on November 9 , 1959 , but it was limited to weekdays only until April 28 , 1966 .