Problems with old-fashioned television antennas were the most common issue among residents of Wilmington, N.C., a city that volunteered to switch to digital broadcasting more than five months before the rest of the country.

The troubles foreshadow the difficulties that viewers nationwide may face.

Wilmington's commercial broadcasters turned off their analog signals at noon Monday. The rest of the nation's full-power stations won't be converting until Feb. 17, the date set by Congress.

The Federal Communications Commission hopes the test will point out problems with the transformation early, so it can react to any problems that may arise after the big change in February.

By late Tuesday, the FCC had not released a breakdown of consumer complaints from the Wilmington test. Some results could be drawn by a survey taken by Elon University students who staffed call lines at local stations from noon Monday until 10 p.m.

It was clear that an ambitious public education campaign had paid off. Of the 172 calls that came in, only a few were from people who were unaware of the transition, said Connie Book, associate dean of the School of Communications at Elon and the lead professor of the research project.

Antenna problems were the No. 1 issue, Book said.

"People were saying 'I'm not getting a picture' and they had a converter box," she said. "And we had to say 'your antenna is not powerful enough, or you don't have one, or it's pointed in the wrong direction, or the height needs to be raised.'"

In February, Nielsen estimated there were more than 13 million households in the U.S. with television sets that can only receive analog broadcasts. Only about 8 percent of households in Wilmington are in that category, fewer than the national average. In Pittsburgh the number is 7.7 percent.

Viewers who receive programming through an antenna and do not own newer-model digital TV sets by the time of the changeover must buy a converter box. The government is providing two $40 coupons per household at www.dtv2009.gov to help defray the cost. Viewers who subscribe to a cable or satellite service won't be affected.

While public education efforts have focused on making sure viewers are aware of the transition and the government coupon program, very little has been publicized about the potential need for antennas.

"Many reception issues are generally easy to resolve, but in some cases in some areas, folks may need a better antenna," said Andy Combs, general manager of WWAY-TV, one of the stations that turned off its signal. "It's best to figure all of that out ahead of time."

A second issue has been people who have not programmed their boxes to tune in the new stations, which actually go by tenths. For example, channel 6 is now channel 6.1.

Viewers who did not have digital-ready televisions were greeted after noon Monday by a screen crawl that included a phone number to call if they had questions. Late Tuesday the FCC reported it had received "several hundred" calls. (John Dunbar, Associated Press)

ABC News' Charles Gibson will interview Sarah Palin this week in her first sit-down interview with a network since the Alaska governor was named John McCain's running mate.

Aware of the widespread interest in the former beauty pageant contestant and hockey mom, ABC is carefully parceling out when it will broadcast bits of the coveted interview with the Republican vice presidential candidate. The first excerpts are slated to air on tonight's "World News With Charles Gibson" and later on "Nightline," followed by Friday's "Good Morning America," "World News," "20/20" and "Nightline." (Zap2it.com)

Kermit, Miss Piggy, Fozzie Bear and the rest of the Muppets will help NBC celebrate the holidays this year.

The Muppet special, titled "Letters to Santa -- A Muppet Christmas," will find the Muppet crew -- most of them, anyway; Miss Piggy is busy planning a trip to the tropics -- trying to deliver three letters to Santa Claus that they accidentally stopped from reaching their destination. "Muppet Movie" composer Paul Williams will contribute new songs to the special, and the likes of Whoopi Goldberg, Tony Sirico, Steve Schirripa and Richard Griffiths will help them in their quest. (Zap2it.com)