It was produced starting in 1979 by Boston television station WCVB-TV.
This was a rare example in the United States of a half-hour sitcom produced by a local station during the 1970s.
Park Street Under was, at least in popular legend, an inspiration for the NBC sitcom Cheers, which was also set in a fictional Boston bar (in a basement), with several similar characters.
[1][2] The cast included Steve Sweeney and James Spruill, father of filmmaker Robert Patton-Spruill.
Park Street Under is also the original name for the Red Line subway platforms at Park Street, which are located underneath the older streetcar tunnels that became the Green Line.