Lingering power and phone outages and other disruptions that have knocked homes out of Nielsen Media Research samples in the wake of Hurricane Charley have left three Florida markets without ratings since Friday.

Fort Meyers, the 70th-largest TV market in the country, was the hardest hit and the in-tab rate in the area was still less than 50 percent late Tuesday afternoon. It was uncertain when normalcy of any kind might be restored in the area. A Nielsen spokeswoman said, “When people go through a crisis situation, opening their doors to Nielsen [field representatives] is not at the top of their list of things to do.”

The in-tab rate in Orlando, the 20th-largest market, was more than 50 percent, a Nielsen spokeswoman said that in Tampa, the 13th market, the sample was nearly operational.

Overnight ratings for Friday and Saturday were “inadvertently released” and then recalled after Nielsen statisticians eyeballed them Monday.

“We do not stand by those Friday and Saturday numbers,” said the Nielsen spokeswoman.