The U.S broadcast television industry could see its credit conditions worsen over the next 12 to 18 months, according to Moody’s Investors Service, the Hollywood Reporter reports.

While near-term trends are positive, such as expected advertising gains from the November elections, the TV industry faces challenges after that, the story says.

"With the loss of political dollars and continuing economic uncertainty, broadcasters could face challenges in maintaining revenue at comparable levels in 2011," Moody’s said.

The ratings agency downgraded the sector to "stable" from "positive."