Here’s a bit of positive news during this ominous economic time. A huge increase in grant support enabled WGBH to have a very strong ’08. Grant commitments grew year-to-year a hefty 70 percent to $121.8 million, from $71.7 million, as of Aug. 31, 2008. Many were PBS grants; its commitments to WGBH jumped to $83.8 million in 2008, from $28.3 million in ’07. “We had our best year in a long time last year,” Ben Godley, WGBH executive v.p., told The Boston Business Journal.