The Chronicle reports that Most Bay Area television stations will delay until June the switch to all-digital broadcasts, now that Congress has given them the option. But two stations, KICU 36 and KOFY 20, are apparently going to all digital later this month, according to KGO-TV president and gm Valari Staab, who heads up the Sutro Tower committee this year. Management from those stations couldn’t be reached, but shutting down an analog transmitter will save a station between $15,000 and $20,000 a month.