The WB 100+ feed was originally designed for the Eastern and Pacific Time Zones, whose master schedules were formatted to align the start time of The WB's prime time programming with the network's broadcast affiliate feed; a Central Time Zone feed was added by the early 2000s, followed by an Alaska Time Zone feed that launched in 2005. As such, the Kids' WB and (from January to September 2006, following the conclusion of the weekday afternoon Kids' WB lineup) Daytime WB blocks, which were designed to be tape-delayed, were aired an hour earlier on affiliates – compared to their preferred scheduling – on affiliates in the Central, Mountain and Alaska time zones.