As reported by the Washington Post:

The Public Broadcasting Service agreed yesterday to ban its member stations from airing new religious TV programs, but permitted the handful of stations that already carry "sectarian" shows to continue doing so. . . Until now, PBS stations have been required to present programming that is noncommercial, nonpartisan and nonsectarian. But the definition of "nonsectarian" programming was always loosely interpreted, and the rule had never been strictly enforced.