Complex sentence: A few months prior to the transfer, the NYC Media Group began replacing WNYE-TV's PBS and instructional programs with locally-themed programming, and within the next year the primetime lineup was composed entirely of original productions.
Split into simpler sentences: A few months prior to the transfer, the NYC Media Group began gradually phasing out WNYE-TV's PBS and instructional programs in favor of locally-themed programming. By 2005, the primetime lineup was composed entirely of original productions.