Live Internet access to TV entertainment via streaming is coming to the Triangle, while startup Aereo, which also plans RTP service, is expanding to Atlanta.

ABC said Tuesday that will expand its live stream service to six other markets where it owns stations: Los Angeles; San Francisco; Fresno, Calif.; Chicago; Houston; and Raleigh-Durham.

ABC owns WTDV in the Triangle.

In addition, ABC has reached a deal with Hearst Television to offer the service in Hearst markets, too. They include Boston, Pittsburgh, Kansas City and Milwaukee.

The service will also be limited to certain cable subscribers in those markets. ABC, which is owned by The Walt Disney Co., has deals with Comcast Corp., Cablevision Systems Inc., Cox Communications Inc., Charter Communications Inc. and AT&T Inc.’s U-verse.

Aereo, meanwhile, said it will offer its service in Atlanta and surrounding areas. The service, which so far has survived court challenges from TV networks, is currently available in New York and is being rolled out in Boston.

Tuesday’s expansion announcement came one day after Aereo eliminated discounted annual plans. In the past, subscribers could pay $80 a year for a plan with 40 hours of storage. That plan normally cost $12 a month, or $144 for the year. Aereo also eliminated a $1 day pass. The main, $8-a-month plan remains with 20 hours of storage. The $12-a-month plan now comes with 60 hours, rather than 40.

The Barry Diller-backed company announced in January that it plans to expand beyond New York to 22 additional U.S. markets. Boston and Atlanta represent the first metropolitan areas outside New York. Others expected in the coming months include Chicago, Philadelphia and Washington.

Aereo sells its service as a low-cost alternative to cable or satellite TV, and it plans to target those who have dropped pay-TV service or never had it. Aereo offers far fewer channels than most pay-TV packages, but it could appeal to viewers who already turn to Hulu, Netflix and other online sources for TV shows and movies.

Broadcasters see Aereo as a threat to their revenue, even though stations already make signals available for free. Broadcasters are increasingly supplementing advertising revenue with fees they get from cable and satellite TV companies for redistributing their stations to subscribers. If customers drop their pay-TV service and use Aereo instead, broadcasters lose some of that revenue.

A cable subscription isn’t required to use Aereo. Rather, Aereo charges a separate monthly fee.

Aereo will be available in Atlanta after June 24, following a weeklong preview for preregistered users, the New York-based company said today in a statement. The expansion will let the service reach an additional 5.3 million consumers in 55 counties in Georgia, Alabama and North Carolina.

The networks are waging a legal fight to shut down the service, which accesses broadcast TV signals and resells them online, utilizing small antennas embedded in servers.

“Consumers have the ability to pick up broadcast TV with an antenna — all Aereo has done is made it smaller and made it remote,” Chief Executive Officer Chet Kanojia said in a televised interview with Emily Chang on “Bloomberg West.” “There should be no controversy in this.”

Aereo is talking with “independent-minded” people to add more video content to its service, Kanojia said.

News Corp.’s Chief Operating Officer Chase Carey said last month he would shut down Fox broadcast and transform it to a cable channel if U.S. courts don’t prevent Aereo from broadcasting its content without paying retransmission fees. CBS Corp. CEO Les Moonves later made the same threat with his network.

So far, federal courts have ruled against broadcasters’ claims that Aereo’s service constitutes copyright infringement. Aereo claims what it is doing is legal because it has thousands of tiny antennas at its data centers and assigns individual subscribers their own antenna.

According to Aereo, that makes it akin to customers picking up free broadcast signals with a regular antenna at home. Broadcasters argue that the use of individual antennas is a mere technicality meant to circumvent copyright law.