New York--Network, spot and cable TV lost a combined $312.2 million in advertising revenue for the week of Sept. 9 through Sept. 15, according to CMR, a Taylor Nelson Sofres company, as networks cut advertising for continuous news coverage following the attacks on the World Trade Center and the Pentagon. Network TV lost $188.4 million for the week, nearly half its weekly revenue. Spot or local TV in the nation's 75 largest markets lost $93.2 million, which is about 30% of weekly revenue. Cable TV lost $31.6 million, or 16% of its weekly revenue. On Sept. 11 alone, the combined media took a hit of $84.6 million. CMR also lowered its projections for ad revenue for the year. It said ad revenues could be down between 6% and 8% for the year, compared with an earlier projection of a 2% to 4% decline.