New York City O&O WABC-TV and Philadelphia O&O WPVI-TV were the first stations to offer streams of their programming on the service (with a free preview for non-subscribers through June 2013), with the six remaining ABC O&Os offering streams by the start of the 2013–14 season.
What were the first local stations to offer streams of their programming on WATCH ABC?
New York City O&O WABC-TV and Philadelphia O&O WPVI-TV