“The next four months may prove to be a rolling transition for the nation’s estimated 1,700 local TV stations,” The New York Times reported last week. Now the Federal Communications Commission is confirming that, as expected, the digital TV switch will occur as scheduled for hundreds of stations.

According to the F.C.C., almost 500 local stations have indicated that they will start broadcasting solely in digital next Tuesday, the date of the original digital TV transition. Already, 190 stations — including all those in Hawaii — have turned off their analog signals. Most stations are broadcasting in both formats until the deadline.

Legislation passed by Congress last week allowed stations to broadcast in analog form until June 12, a four-month extension of the original deadline. The legislation permitted some stations to turn off their analog signals before June, meaning that some stations in a given market will be switching before others.

Update: 5:35 p.m.: President Obama signed the bill on Wednesday, Broadcasting & Cable notes.

The research firm Stifel, Nicolaus & Company, in a note to clients, said last week that the rolling transition was “creating the potential for some over-the-air programming disruption and consumer confusion this month.”

The stations owned by ABC, CBS, Fox and NBC have said they will continue to transmit an analog signal until June. “Stations in smaller markets are more likely to feel the added economic burden of keeping analog broadcasts for another four months,” The Associated Press reported.

Complete lists of the stations that will turn off their analog signals are available on FCC.gov.