Many of the 400,000 Maryland adults without high school diplomas can now study for the General Educational Development test under the revised "GED on TV" program.

The fall lineup for Maryland Public Television includes a revised set of classes for the tougher GED test that will be used in January, said Naomi Reed of the state Department of Education.

The classes, which aired several years ago in Maryland but were dropped, returned to the air in January and have been revised for the fall, Reed said last week.

Classes begin Monday and will be shown on MPT stations in Annapolis, Baltimore, Salisbury, Hagerstown, Oakland and Frederick, and include instruction on reading, writing and mathematics.

"We know there's a population out there of people who cannot attend classes, whether because they're physically disabled or have to stay home because of their families," Reed said. People preparing for the test can use the TV classes as their sole study tool or as a supplement to classroom study, she added.

Last year, 12,207 people took the GED test in Maryland, and 6,828 received diplomas, officials said.

The programs will air at 6:15 a.m. Monday through Friday and 11:30 a.m. Tuesday and Thursday.